JP7839211B2 - Information gathering system and information gathering method - Google Patents

Description

This disclosure relates to an information collection system and method for collecting information concerning traffic signals, which include traffic signal controllers, signal lights, and utility poles.

Non-patent document 1 discloses a webpage that accepts opinions regarding traffic signals at individual intersections. Users, who are local residents, can access this webpage to submit their opinions on traffic signals. For example, users can input opinions such as "the traffic signals are difficult to see," "traffic signals are necessary or unnecessary," "the green light period is too short despite heavy traffic," or "the traffic signals are broken" using a dedicated form.

https://www.npa.go.jp/bureau/traffic/seibi2/annzen-shisetu/hyoushiki-shingouki/shinngoukibox/shingou/singou-link.html

However, Non-Patent Document 1 requires users to access a webpage and input their opinions without a standardized format. Therefore, it is difficult to reflect users' opinions immediately after using the intersection. Furthermore, because the input fields are free-form, users without knowledge of traffic control or traffic signals will find it difficult to input their opinions. In a typical four-way intersection, the wider road with heavy traffic is referred to as the main road, and the narrower, less busy road intersecting it is referred to as the secondary road. For example, traffic signals are installed on both the main and secondary roads at an intersection. Additionally, traffic signals are installed on both sides of the main and secondary roads. Therefore, it is difficult for users unfamiliar with the area to easily identify the intersection or traffic signals. Consequently, user opinions may not be reflected in local government or other organizations, leading to a lack of improvement and contradicting the Sustainable Development Goal of "making cities and human settlements inclusive, safe, and resilient."

This disclosure is made in light of the points mentioned above, and aims to provide an information input system and information collection method that allows users to easily input information about traffic signals, thereby improving the efficiency of collecting opinions from local residents and contributing to the "Sustainable Cities and Communities" goal of the Sustainable Development Goals.

The information gathering system of this embodiment is an information gathering system for collecting information related to traffic signals, comprising a traffic signal having a signal lamp and a traffic signal controller that controls the signal lamp, and a collection device installed in conjunction with the traffic signal controller. The collection device transmits a request signal to a user terminal of a user near the traffic signal, and upon receiving a response signal from the user terminal that received the request signal, transmits a question for information gathering to the user terminal, receives the answer to the question entered by the user terminal, and transmits information corresponding to the answer to the question to a server and a control center.

In the above information gathering system, the gathering device may determine the user's direction based on the radio wave intensity of the signal received from the user terminal.

In the information gathering system described above, the user's route may be identified based on the illumination status of the signal lights.

An information collection system for collecting information related to traffic signals comprises a server that collects information from user terminals of users near the traffic signal, a traffic signal having a signal light and a traffic signal controller that controls the signal light, and the traffic signal is associated with access information to the server. When a user accesses the server using their user terminal based on the access information, the server sends a question to the user terminal, and the server receives information based on the answer entered by the user from the user terminal.

In the above-described information collection system, the access information may be a QR code (registered trademark) provided on the traffic signal controller.

In the above-described information collection system, the user's route may be identified based on the location information of the user terminal.

In the information gathering system described above, the user terminal may be configured to display the question at a timing corresponding to the illumination status of the signal light.

An information collection system for collecting information related to traffic signals, comprising a traffic signal equipped with a signal lamp and a traffic signal controller for controlling the signal lamp, and a collection device installed in conjunction with the traffic signal controller, wherein the collection device includes a display unit that displays questions to users near the traffic signal, an input device that receives input of answers to the questions from the users, and a communication unit that transmits information corresponding to the answers to the questions to a server and a control center.

In the above-described information gathering system, the user's route may be identified based on the data entered by the user.

An information collection method for collecting information relating to a traffic signal having a signal light and a traffic signal controller that controls the signal light, wherein a collection device installed in conjunction with the traffic signal controller transmits a signal to a user terminal of a user near the traffic signal, and upon receiving a response signal from the user terminal that received the signal, transmits a question for information collection to the user terminal, receives the answer to the question entered by the user terminal, and transmits information corresponding to the answer to the question to a server and a control center.

This embodiment provides an information gathering method for collecting information relating to a traffic signal system comprising a signal light and a traffic signal controller that controls the signal light. The traffic signal system is equipped with access information to a server that collects information from a user terminal. When a user accesses the server based on this access information using the user terminal, the server sends a question to the user terminal, and the server receives information based on the user's response from the user terminal.

The information gathering method of this embodiment is an information gathering system for collecting information relating to a traffic signal, which comprises a signal light and a traffic signal controller that controls the signal light. The information gathering device, installed in conjunction with the traffic signal controller, displays a question to a user near the traffic signal, accepts input from the user for their answer to the question, and transmits information corresponding to the answer to the question to a server and a control center.

This disclosure provides an information collection system and method that can easily collect information related to traffic signals.

This is a schematic block diagram showing the overall configuration of the information collection system according to Embodiment 1. This is a schematic plan view illustrating the layout of an intersection. This diagram schematically shows the configuration of a traffic signal according to Embodiment 1. This is a diagram showing the signal indication stages of a traffic signal. This is a flowchart showing the information collection method according to Embodiment 1. This figure shows an example of the display screen on a user's terminal. This is a schematic block diagram showing the overall configuration of the information collection system according to Embodiment 2. This diagram schematically shows the configuration of a traffic signal according to Embodiment 2. This is a flowchart showing the information collection method according to Embodiment 2. This diagram schematically shows the configuration of a traffic signal according to Embodiment 3. This is a flowchart showing the information collection method according to Embodiment 3. This is a flowchart showing the types of questions asked to the user. This is a flowchart showing the types of questions asked to the user.

The following describes specific embodiments of this disclosure in detail with reference to the drawings. However, this disclosure is not limited to the following embodiments. Furthermore, for clarity, the following descriptions and drawings have been simplified as appropriate.

Embodiment 1
The information gathering system according to Embodiment 1 will be described with reference to Figure 1. Figure 1 is a schematic block diagram showing the overall configuration of the information gathering system 100. The information gathering system 100 includes a server 10, a control center 30, traffic signals 20, a user terminal 50, and a collection device 60, etc.

The information gathering system 100 is a system that collects information such as opinions, complaints, and requests regarding intersections and traffic signals 20 from user terminals 50. In the following explanation, users who utilize intersections and traffic signals 20 are referred to as "users," and those who perform traffic control, etc., at the control center 30 are referred to as "administrators." Therefore, when a user on the user terminal 50 inputs an opinion regarding intersections and traffic signals 20, the administrator at the control center 30 can access that information. Based on the collected information, the administrator can then change the settings of the traffic signal controller 40 of the traffic signals 20.

The user terminal 50 is a mobile communication device such as a smartphone. The user terminal 50 is equipped with a processor, memory, camera, touch panel display, speaker, wireless communication transceiver, etc. Furthermore, an application for collecting opinions is pre-installed on the user terminal 50. Users may register their personal information and ID in the application beforehand. For example, users may register their age, gender, etc., in advance.

The traffic signal 20 comprises a traffic signal controller 40, a pedestrian signal light 21P, and a vehicle signal light 21V. The traffic signal controller 40 is installed at or near the intersection and controls the pedestrian signal light 21P and the vehicle signal light 21V. For example, the traffic signal controller 40 can control the timing of each stage of the pedestrian signal light 21P and the vehicle signal light 21V. The traffic signal controller 40 controls the pedestrian signal light 21P and the vehicle signal light 21V of the traffic signal 20 according to the set timing.

Pedestrian signal lights 21P indicate the right of passage for pedestrians using red, blue, yellow, or other light colors and arrows. Vehicle signal lights 21V indicate the right of passage for vehicles using red, blue, yellow, or other light colors and arrows. Note that pedestrian signal lights 21P and vehicle signal lights 21V are also simply referred to as signal lights 21.

The data collection device 60 is installed at or near an intersection. The data collection device 60 includes a communication unit 61 and a processing unit 62. The data collection device 60 may also have an input/output unit 64, such as a touch panel, display, input buttons, or speaker. The data collection device 60 may also have an input/output interface for connecting to external devices.

The processing unit 62 includes memory, a processor, and other components, and executes processing by running programs stored in memory. The processing unit 62 generates data for transmission to the user terminal 50 and the server 10. Furthermore, the processing unit 62 performs predetermined processing on the data received from the user terminal 50. The communication unit 61 performs processing for sending and receiving data to and from the server 10 or the user terminal 50. For example, the communication unit 61 is equipped with transceivers for wireless communication such as Wi-Fi® or Bluetooth®.

The data collection device 60 distributes data for collecting information to the user terminal 50. For example, the data collection device 60 stores multiple questions for user U. When user U accesses the data collection device 60 by operating the user terminal 50, the data collection device 60 sends the questions to the user terminal 50. User U sequentially inputs answers to the questions from the user terminal 50. Furthermore, the displayed questions change depending on the answers. The user terminal 50 transmits the answers entered by user U to the data collection device 60. The data collection device 60 will be described later.

The data collection device 60 transmits the data collected from the user terminal 50 to the server 10. Here, the data collection device 60 is installed, for example, at each intersection. The data collection device 60 is installed in conjunction with the traffic signal controller 40. The data collection device 60 may be assigned a unique ID to identify the traffic signal 20 and the intersection. The administrator at the control center 30 can identify which intersection or which traffic signal 20 the comment pertains to by referring to the ID of the data collection device 60.

Server 10 collects information from multiple collection devices 60. Server 10 notifies the control center 30 of the aggregated information results. For example, Server 10 aggregates the content and number of opinions for each intersection or traffic light 20. Server 10 then transmits the collection results for a certain period to the control center 30. Server 10 has communication functions for wireless communication with the control center 30 and the collection devices 60. Server 10 notifies the control center 30 of the collected information results.

The control center 30 centrally controls the traffic signal controllers 40 installed at each intersection within a designated area. The control center 30 centrally manages multiple traffic signal controllers 40 over a wide area. The control center 30 monitors each traffic signal controller 40 in order to control traffic. From a remote location, the control center 30 obtains real-time information on the indication level (step number) and cycle length of the traffic signal controllers 40 via a communication line (not shown) to determine if a traffic signal controller 40 is malfunctioning.

The administrator at the control center 30 can change the settings of the traffic signal controller 40 according to the collected data. For example, the administrator may refer to the data collected on the server 10 and change the cycle time, split time, and holding time for each level of the traffic signal 20. This allows for feedback based on the collected information, improving convenience. The settings of the traffic signal controller 40 may also be changeable remotely from the control center 30. Alternatively, the administrator may travel to the site where the traffic signal controller 40 is installed and change its settings there.

The information collection process in the collection device 60 will be explained in detail below using Figures 2 and 3. Figure 2 is a schematic plan view showing the configuration of the intersection 3. Figure 3 is a schematic diagram of the traffic signal 20a installed at the intersection. The following describes an example in which user U, a pedestrian, collects opinions regarding the pedestrian signal light 21P.

At intersection 3, main road 1 and secondary road 2 intersect. In Figure 2, the road extending in the Y direction is main road 1, and the road extending in the X direction is secondary road 2. Crosswalks 4a to 4d are provided at intersection 3. Crosswalks 4a and 4c cross secondary road 2, while crosswalks 4b and 4d cross main road 1. Crosswalk 4a is located on the -X side of intersection 3, and crosswalk 4c is located on the +X side of intersection 3. Crosswalk 4b is located on the +Y side of intersection 3, and crosswalk 4d is located on the -Y side of intersection 3.

User U possesses user terminal 50. User terminal 50 has an information gathering application installed. This section describes an example where User U crosses pedestrian crossing 4a. Specifically, User U crosses the secondary road 2 by walking across pedestrian crossing 4a in the +Y direction. User U immediately after crossing pedestrian crossing 4a is shown as User U1.

As shown in Figure 2, traffic signals 20a, 20b, 20c, and 20d are installed at intersection 3. In Figure 2, traffic signals 20a to 20d are installed at each corner of the four pedestrian crossings 4a, 4b, 4c, and 4d at intersection 3. Traffic signal 20a is equipped with a pedestrian signal light 21Pa and a vehicle signal light 21Va, as shown in Figure 3.

Note that traffic signals 20b, 20c, and 20d have the same configuration as traffic signal 20a, so they are indicated in parentheses as shown in Figure 3, and detailed explanations are omitted. For example, the utility poles for traffic signals 20b, 20c, and 20d are designated as utility poles 22b, 22c, and 22d. Similarly, the pedestrian signal lights 21P for traffic signals 20b, 20c, and 20d are designated as pedestrian signal lights 21Pb, 21Pc, and 21Pd, and the vehicle signal lights 21V for traffic signals 20c, 20c, and 20d are designated as vehicle signal lights 21Vb, 21Vc, and 21Vd.

The following describes an example of user U inputting feedback regarding the pedestrian signal light 21Pa of traffic signal 20a. A pedestrian signal light 21Pa and a vehicle signal light 21Va are installed on utility pole 22a (see Figure 3). Also, in Figure 2, a collection device 60 is only provided on traffic signal 20a in the upper left corner, but collection devices 60 may be provided on each of traffic signals 20a to 20d. Therefore, it is sufficient for at least one collection device 60 to be provided at intersection 3.

As shown in Figure 3, the traffic signal 20a comprises a pedestrian signal light 21Pa, a vehicle signal light 21Va, a utility pole 22a, a traffic signal controller 40, and a collection device 60. The utility pole 22a is, for example, a support pole installed on the ground at the corner of the intersection, supporting the pedestrian signal light 21Pa, the vehicle signal light 21Va, the traffic signal controller 40, and the collection device 60. Furthermore, the traffic signal controller 40 only needs to be installed in one of the traffic signals 20a to 20d. Therefore, at least one traffic signal controller 40 is required at intersection 3. The traffic signal controller 40 can control the signal lights 21 of the four traffic signals 20a to 20d.

The pedestrian signal light 21Pa is a pedestrian signal light equipped with a red light 26 and a green light 27. The traffic signal controller 40 is a control panel that controls the illumination of all signal lights 21 installed at intersection 3. The traffic signal controller 40 is installed on the utility pole 22a. For example, the traffic signal controller 40 has settings for cycle time, split time, and holding time for each level of the signal.

The collection device 60 is housed in a casing installed on the utility pole 22a. The collection device 60 is connected to the traffic signal controller 40 by wire or wireless connection. The traffic signal controller 40 can output various signals to the collection device 60. For example, the traffic signal controller 40 outputs control signals to the collection device 60 indicating the timing of illumination for each color.

The data collection device 60 is equipped with ID information to identify the traffic signal 20 or signal lamp 21. While the data collection device 60 and the traffic signal controller 40 are installed separately, they may be integrated into a single device. Furthermore, the traffic signal controller 40 and the data collection device 60 may be housed in a common enclosure.

The data collection device 60 transmits data containing the ID information as a request signal via advertisement. The signal that the data collection device 60 advertises and transmits is considered the request signal. The data collection device 60 continuously transmits the request signal to an unspecified number of user terminals 50. Specifically, the data collection device 60 repeatedly transmits data containing the ID information as a multicast signal at predetermined time intervals. The transmission range of the data collection device 60 is limited to the area around the intersection 3. The data collection device 60 can only transmit the request signal to user terminals 50 located around the intersection.

When a user terminal 50 with the app installed passes near the data collection device 60, the user terminal 50 receives a request signal. In other words, the request signal reaches user terminals 50 of users located near intersection 3. Upon receiving the request signal, the user terminal 50 notifies user U. The user terminal 50 responds to the request signal by sending a response signal to the data collection device 60.

For example, when user terminal 50 receives a request signal, the application's notification function prompts user U to ask whether or not to enter an opinion. If user U operates user terminal 50 and selects to enter an opinion, user terminal 50 transmits a response signal to collection device 60. The response signal may include user ID information to identify user U.

When the data collection device 60 receives a response signal, it transmits questions for opinion gathering to the user terminal 50. Upon receiving a question, the user terminal 50 displays it on its display. The user terminal 50 may also display the question on a web browser or similar device. When user U answers the question, the user terminal 50 transmits the answer to the data collection device 60. For example, when user U crosses the pedestrian crossing 4a, the data collection device 60 collects information such as whether the pedestrian signal light 21Pa is lit red for an extended period, whether the pedestrian signal light 21Pa is malfunctioning, or whether the pedestrian signal light 21Pa is difficult to see. Furthermore, along with the answer, the user terminal 50 may transmit its terminal ID, the time of the answer, etc.

The data collection device 60 transmits the response from the user terminal 50 to the server 10, as shown in Figure 1. In this way, the server 10 can collect information on all traffic signals 20 installed at intersection 3. Furthermore, since the data collection device 60 is equipped with ID information to identify the traffic signals 20 or signal lights, the administrator can easily recognize which traffic signals 20 or signal lights the information pertains to.

The data collection device 60 or user terminal 50 can perform processing to identify the direction in which user U crosses one of the four pedestrian crossings 4a to 4d. Here, "direction" corresponds to the direction in which user U crosses the pedestrian crossing. For example, the data collection device 60 identifies which of the pedestrian crossings 4a to 4d at intersection 3 user U crossed. Furthermore, for a single pedestrian crossing, the data collection device 60 may also identify the direction from which user U crossed the pedestrian crossing. For example, if user U crosses pedestrian crossing 4a, the data collection device 60 identifies whether the user crossed in the +Y direction or the -Y direction.

For example, the data collection device 60 identifies the direction of user U based on data from the user terminal 50. Then, based on the identified direction, the data collection device 60 detects which traffic signal or signal light 21 at intersection 3 the comment pertains to. In other words, based on the direction, the data collection device 60 identifies one signal light 21 from among the multiple signal lights 21 installed at intersection 3. The data collection device 60 transmits specific information indicating the identified signal light 21 along with the comment.

The following describes an example of the process for identifying a route. The methods shown in the following example may be executed individually or in combination. Furthermore, although the process for identifying the route is described as being performed by the data collection device 60, at least a part of the process may be performed by the user terminal 50 or the server 10.

Processing Example 1
In processing example 1, the data collection device 60 utilizes the location information of the user terminal 50. For example, the user terminal 50 has satellite positioning means such as GPS (Global Positioning System). The data collection device 60 receives location information from the user terminal 50 and determines the route based on the location information.

The user terminal 50 transmits location information along with a response signal. Alternatively, the user terminal 50 transmits location information along with a reply. The data collection device 60 identifies the direction of user U from the location information and its history. For example, in Figure 2, since user U is moving from near store A 7 to near store B 8, the data collection device 60 detects that user U has crossed the pedestrian crossing 4a in the +Y direction.

The data collection device 60, upon identifying the direction, can recognize that the opinion pertains to the traffic signal 20a installed facing the pedestrian crossing 4a. After user U crosses the pedestrian crossing 4a, they operate the user terminal 50 to input their opinion. The data collection device 60 transmits the response from the user terminal 50 to the server 10. The data collection device 60 also transmits specific information indicating the identified traffic signal. This allows the administrator to easily recognize which traffic signal 21 the opinion pertains to.

Processing Example 2
Processing Example 2 uses the radio wave strength obtained from the user terminal 50. The user terminal 50 transmits a wireless signal to the collection device 60 at regular intervals. When the collection device 60 receives the wireless signal from the user terminal 50, it analyzes the radio wave strength of the wireless signal. Then, the collection device 60 identifies the direction based on the fluctuations in radio wave strength.

For example, the signal strength received by the data collection device 60 changes depending on the distance between the user terminal 50 and the data collection device 60. Specifically, the closer the user terminal 50 is to the data collection device 60, the stronger the signal strength becomes. Conversely, the further the user terminal 50 is from the data collection device 60, the weaker the signal strength becomes. Therefore, the data collection device 60 can determine the direction of user U in response to the change in signal strength.

The following describes the signal strength received by the data collection device 60 installed on the traffic signal 20a. For example, when user U crosses the pedestrian crossing 4a in the +Y direction, the signal strength is low before crossing. As user U crosses the pedestrian crossing 4a, the signal strength increases with movement. The signal strength reaches its maximum after user U has crossed. The signal strength is highest at user U1's position. Conversely, when user U crosses the pedestrian crossing 4a in the -Y direction, the signal strength received by the data collection device 60 decreases. The data collection device 60 can detect crossing based on the fluctuations in signal strength.

Furthermore, if each of the multiple traffic signals 20 is equipped with a data collection device 60, the direction of user U may be determined by comparing the radio wave strengths of the multiple data collection devices 60. For example, suppose each of the traffic signals 20 shown in Figure 2 is equipped with a data collection device 60. In this case, the location and direction of movement of user U can be determined by referring to the radio wave strengths of the signals received by the four data collection devices 60. This allows the data collection devices 60 to determine the direction with high accuracy.

Furthermore, the data collection device 60 may specify the direction of travel depending on the lighting state of the traffic signal 20 when crossing is detected. The traffic signal controller 40 supplies timing signals indicating the lighting state of the signal lights 21 to the data collection device 60. The timing signals are signals that indicate the indication of the traffic signal in the signal lights 21. Figure 4 shows a typical indication hierarchical diagram of a two-aspect traffic signal 20. 1P indicates the lighting state of the pedestrian signal lights 21Pa and 21Pc indicating the right of passage for pedestrians on the main road 1, and 1V indicates the lighting state of the vehicle signal lights 21Va and 21Vc indicating the right of passage for vehicles on the main road 1. 2P indicates the lighting state of the pedestrian signal lights 21Pb and 21Pd indicating the right of passage for pedestrians on the secondary road 2, and 2V indicates the lighting state of the vehicle signal lights 21Vb and 21Vd indicating the right of passage for vehicles on the secondary road 2.

Step 1: 1P and 1V are lit blue, and 2P and 2V are lit red. In Step 2, 1P changes to blinking blue, and in Step 3, 1P changes to lit red. In Step 4, 1V changes to lit yellow, and in Step 5, 1V changes to lit red. In other words, in Step 5, 1P, 1V, 2P, and 2V are all lit red. In Step 6, 2P and 2V turn blue. In Step 7, 2P changes to blinking blue, and in Step 8, 2P changes to lit red. In Step 9, 2V changes to lit yellow, and in Step 10, 2V changes to lit red.

The timing signal indicates the color of the traffic signal 21. Alternatively, the timing signal indicates whether the pedestrian signal 21P is flashing blue or not. For example, the timing signal can indicate whether the pedestrian signal 21P is red, blue, or flashing blue. The data collection device 60 can recognize the lighting state of the traffic signal 20 based on the timing signal. Then, the data collection device 60 refers to the lighting state of the traffic signal 20 and determines the direction based on the radio wave intensity.

For example, suppose that at a pedestrian signal light 21Pa, the green light 27 for the crosswalk 4a is illuminated, and the data collection device 60 detects user U crossing based on radio wave strength. In this case, it is detected that user U has crossed the crosswalk 4a in the +Y direction. When the green light 27 for the crosswalk 4a is illuminated, the red light 26 for the crosswalk 4b is illuminated. Therefore, the data collection device 60 can detect, based on the timing signal, that user U has not crossed the crosswalk 4b.

Specifically, when crossing pedestrian crossing 4a in the +Y direction, the signal strength of the collection device 60 installed on traffic signal 20a gradually increases. Similarly, when crossing pedestrian crossing 4b in the -X direction, the signal strength of the collection device 60 installed on traffic signal 20a also gradually increases. In such cases, it may be impossible to determine the direction based on signal strength alone. Therefore, the collection device 60 determines the direction not only based on signal strength but also on the lighting status.

Furthermore, the data collection device 60 may change the question data according to the lighting status of the traffic signal 20. That is, the data collection device 60 changes the question based on the timing signal and transmits it to the user terminal 50. In Figure 4, in steps 1 and 2, when 1P is solid green or flashing green, a questionnaire (questions) for soliciting opinions on pedestrian signal lights 21Pa and 21Pc on the main road 1 is transmitted. In steps 6 and 7, when 2P is solid green or flashing green, a questionnaire (questions) for soliciting opinions on pedestrian signal lights 21Pb and 21Pd on the secondary road 2 is transmitted. In this way, the data collection device 60 can transmit appropriate questions to the user terminal 50. The data collection device 60 can collect opinions on any of the pedestrian signal lights 21P used by user U on the user terminal 50. Therefore, opinions can be collected more easily. The data collection device 60 may also detect the lighting status by imaging the signal light 21 with a camera.

Processing Example 3
In processing example 3, the data collection device 60 identifies the route based on the data input from user U. Specifically, the data collection device 60 queries user U for information in order to identify the route. For example, the data collection device 60 sends questions to the user terminal 50 regarding the destination, departure point, and travel route. When user U operates the user terminal 50 and answers the questions, the user terminal 50 sends the answers to the data collection device 60. The data collection device 60 estimates user U's route from the destination, departure point, and travel route.

The data collection device 60 may send messages to the user terminal 50 as questions inquiring about the destination, departure point, current location, origin, and direction. The user terminal 50 may display a message on its display inquiring about the direction of travel. Alternatively, it may display messages on its display inquiring about the destination and departure point to determine the direction from the route from the departure point to the destination. The user terminal 50 may also inquire whether landmarks such as stores near the intersection are present before or after crossing the street. In Figure 2, the application on the user terminal 50 inquires with user U whether they moved from convenience store 6 to store B 8, or from store A 7 to store B 8.

Alternatively, the application on the user terminal 50 may display a map on its screen and prompt user U to identify a travel route or direction. The application on the user terminal 50 may also display a map on the touchscreen and prompt user U to trace the travel route.

Alternatively, the application on the user terminal 50 prompts user U to capture an image in the direction from which they crossed. User U then captures an image of the area around the intersection using the camera on the user terminal 50. For example, after crossing the pedestrian crossing 4a, the user terminal 50 displays a message on its display prompting user U to capture an image in the direction from which they crossed. Alternatively, the user terminal 50 displays a message on its display asking user U whether the captured image is of the direction they are crossing or the direction they crossed.

Furthermore, it is preferable that the user terminal 50 displays the question after user U has crossed the pedestrian crossing. For example, it is preferable that the data collection device 60 transmits the question when it detects crossing based on location information and radio wave strength. Alternatively, when the data collection device 60 detects crossing, it transmits a detection signal to the user terminal 50 indicating that crossing has been detected. Alternatively, the user terminal 50 may detect crossing based on location information and radio wave strength. After the user terminal 50 receives the detection signal or after detecting crossing, it displays the question on its display. This allows user U to answer the question immediately after crossing. This makes it easy to collect opinions from user U. For example, the data collection device 60 can obtain opinions from user U immediately after they have used the pedestrian crossing. Furthermore, it is possible to avoid user U having to answer the question while crossing.

The following explains the method for collecting opinions within the system, using Figure 5 as an example. Figure 5 is a flowchart illustrating the collection method.

The data collection device 60 installed at intersection 3 transmits a request signal using an advertising method (S101). For example, the data collection device 60 transmits the request signal at regular time intervals. Then, the application on the user terminal 50 located around intersection 3 sends a response to the data collection device 60 (S102).

Next, the data collection device 60 identifies the direction of user U (S103). Here, as described above, the data collection device 60 identifies the direction based on location information and radio wave strength. Alternatively, the data collection device 60 may identify the direction from the responses or images entered by user U. Furthermore, the user terminal 50 may identify the direction and transmit it to the data collection device 60.

Next, when the data collection device 60 detects that user U has crossed one of the four pedestrian crossings 4, it sends a question to the user terminal 50 (S104). The application on the user terminal 50 then asks user U if they have any complaints or problems regarding intersection 3 (S105). Figure 6 shows an example of a screen that inquires about complaints or problems regarding intersection 3. As shown in Figure 6, the user terminal 50 displays a question on its display inquiring about complaints or problems. This allows dissatisfied users U to easily input their opinions on the touch panel.

If User U inputs that they have a complaint or a problem (YES in S105), the application on User Terminal 50 moves to a question screen (S106). The application on User Terminal 50 asks questions to identify the complaint or problem. User U operates User Terminal 50 and inputs their answers to the questions on the touch panel. If User U inputs that they have no complaint or problem (NO in S105), the data collection device 60 receives an answer indicating that there is no complaint or problem. This allows the data collection device 60 to obtain the data showing that User U comfortably crossed one of the four pedestrian crossings at Intersection 3.

The user terminal 50 may display questions in a questionnaire format. Alternatively, the user terminal 50 may display multiple multiple-choice questions. The user terminal 50 may also display questions according to a pre-configured flowchart. The user terminal 50 may change the next question based on the user U's answers. The questions displayed by the user terminal 50 are not limited to display output on the screen; they may also be output as audio via a speaker.

The data collection device 60 receives the response entered by user U from the user terminal 50 (S107). The data collection device 60 transmits the collected response results to the server 10 (S108). The data collection device 60 may transmit the collected results to the server 10 each time a user U responds, or it may transmit a combined collected result of responses from multiple users U to the server 10.

Server 10 transmits the aggregated results to the control center 30 at regular intervals (S109). The administrator checks the aggregated data from the control center 30 and uses it to improve the operation of intersection 3 (S110). For example, if a certain number of opinions are collected regarding a malfunctioning traffic signal 20, or if the traffic signal 20 is difficult to see due to obstacles such as trees, the administrator arranges for repairs to the signal lights 21, etc. Also, if a certain percentage of opinions are collected regarding any of the multiple signal lights having a short green light duration, the administrator changes the settings of the traffic signal controller 40.

This method allows for efficient collection of opinions regarding the traffic signal 20 at intersection 3. Since user U does not need to access web pages or other resources on their home computer after returning home, they can easily input their opinions. Furthermore, because the collection device 60 is provided in conjunction with the traffic signal 20, the collection device 60 can easily identify the intersection 3, traffic signal 20, or signal light 21 that are the subject of the opinion. Even user U, who lacks specialized knowledge of traffic control or traffic signals, can easily input their opinions.

Furthermore, the data collection device 60 identifies which pedestrian signal light 21P is being used based on location information, radio wave strength, or the user's response to the questions. Even users U without specialized knowledge of traffic signals or intersections can easily input their opinions. In addition, the administrator may reward users with points or other incentives based on their input.

Furthermore, the data collection device 60 may acquire user information about user U along with the user's response. For example, it may collect the age and gender of user U who entered their opinion. This allows for the aggregation of age groups of users U who used the intersection 3 and pedestrian crossing 4. It also enables improvements to the operation of intersection 3 based on user information.

Embodiment 2
In the information collection system according to this embodiment, the configuration of the traffic signal 20 differs from that of Embodiment 1. In this embodiment, the information collection system 100 utilizes QR codes. Figure 8 shows the configuration of the traffic signal 20 in the information collection system 100 of this embodiment. As shown in Figure 7, the information collection system 100 is not provided with a collection device 60. Details that are the same as those in Embodiment 1 will be omitted as appropriate. Since the traffic signals 20a to 20d have the same configuration, in Figure 8, the traffic signals 20b to 20d are shown in parentheses and detailed explanations will be omitted.

As shown in Figure 8, a QR code 24 is provided on the traffic signal 20a. The QR code 24 is located on the housing of the traffic signal controller 40. Of course, the QR code 24 is not limited to the traffic signal controller 40; it may also be provided on utility poles 22a-22d, etc., wherever user U can capture an image. The QR code 24 contains access information for accessing the server 10.

A user U who wishes to submit an opinion accesses the server 10 using the QR code 24. When user U scans the QR code 24 with the camera on their user terminal 50, the user terminal 50 accesses a webpage for submitting opinions. The user terminal 50 can directly access the remote server 10 using mobile communication standards such as 4G, LTE (Long Term Evolution), or 5G. The user terminal 50, with the application installed, may detect its proximity to intersection 3 based on its location information. If the user terminal 50 detects its proximity to intersection 3, the application may output a message prompting user U to scan the QR code 24.

When the user terminal 50 accesses the server 10 via the QR code 24, the server 10 sends a question to the user terminal 50. The user terminal 50 displays the question on a web browser. User U operates the user terminal 50 to input answers to the question. In this way, similar to Embodiment 1, the server 10 can collect information on the intersection 3 and the traffic signal 20.

In this embodiment, since it is not necessary to install a data collection device 60 for each traffic signal 20, installation costs can be reduced. In other words, since it is only necessary to attach a unique QR code 24 to the existing traffic signal controller 40, installation costs can be significantly reduced.

By using QR codes 24, the intersection 3 and traffic signal 20 where opinions were entered can be easily identified. In other words, by attaching a different QR code 24 to each traffic signal controller 40, the traffic signal 20 and intersection 3 can be easily identified. By changing the access address for each QR code 24, the intersection 3 and traffic signal 20 can be easily identified. The server 10 can identify the user U who entered the opinion by obtaining the IP address of the accessing user terminal 50. In other words, the server 10 can determine that an opinion was entered based on the IP address of the user terminal 50.

Of course, the access information that the user terminal 50 uses to access the server 10 may be something other than the QR code 24. In other words, access information other than the QR code 24 may be attached around the traffic signal 20. For example, search keywords, URLs (Uniform Resource Locator), barcodes, etc., may be attached as access information to the traffic signal controller 40 or the utility pole 22a.

Furthermore, it is preferable that the QR code 24 corresponds to the traffic signal light 21. For example, if the QR code 24 is oriented to match the orientation of the traffic signal light 21, the user U can easily recognize that the QR code 24 is attached. By placing the QR code 24 directly below or around the traffic signal light 21, the user U can scan the QR code 24 immediately after crossing the pedestrian crossing 4.

Furthermore, by providing a QR code 24 for each signal light 21, it is possible to easily identify which signal light 21 the comment pertains to. For example, since the position where user U can easily take an image differs depending on the route, the QR code 24 may be provided at a position and orientation corresponding to the route. Different QR codes 24 may be provided for each route. This allows the server 10 to easily identify the route. Of course, as in processing example 3 of Embodiment 1, the user terminal 50 may display a question to identify the route. Alternatively, the server 10 or the user terminal 50 may identify the route from the location information of the user terminal 50.

Figure 9 is a flowchart showing the information collection method. First, user U holds user terminal 50 over the QR code 24 to capture an image of the QR code 24 (S201). It is preferable that the QR code 24 is positioned so that user U can capture the image immediately after crossing the road. Furthermore, it is preferable that each traffic signal 20 or signal light 21 uses a unique QR code.

Next, the user terminal 50 accesses the webpage corresponding to the QR code 24 (S202). This causes the user terminal 50 to transition to a question screen where the question is displayed. User U answers the question (S203). Then, the user terminal 50 sends the answer to the server 10, which stores the answer result (S204). Here, the server 10 may store information for each intersection, each traffic signal 20, or each signal light 21. The server 10 sends the aggregated results to the control center 30 at regular intervals (S205). The administrator checks the aggregated data from the control center 30 and uses it to improve the operation of intersection 3 (S206).

In this way, opinions regarding the traffic signals 20 and intersection 3 can be easily collected, similar to Embodiment 1. Furthermore, since the collection device 60 is not required, installation costs can be reduced.

Embodiment 3
In Embodiment 3, the collection device 60 is an operating panel that can be operated by user U. Figure 10 is a schematic diagram showing the configuration of the traffic signal 20a. Note that in Figure 10, traffic signals 20b, 20c, and 20d have the same configuration as traffic signal 20a, so they are shown in parentheses and detailed explanations are omitted.

For example, the data collection device 60 is installed inside the housing of the traffic signal controller 40. The data collection device 60 is equipped with a touch panel display 63 that allows for display and input operation from outside the housing. Furthermore, the data collection device 60 has a camera 65 capable of capturing images of the user U performing the input. Note that details similar to those in Embodiment 1 will be omitted as appropriate.

For example, the touch panel display 63 of the data collection device 60 is exposed on the outside of the housing. The touch panel display 63 functions as a display device for displaying questions and an input device for receiving input. The touch panel display 63 displays questions to user U who has crossed a pedestrian crossing. User U can also input answers to the questions by operating the touch panel display 63. The data collection device 60 may also be a tablet PC or similar device with a touch panel display 63.

For example, when user U operates the data collection device 60, the device displays questions in sequence. User U then inputs the answers to the questions using the touch panel display 63. Of course, input of answers is not limited to the touch panel display 63; it may also be done using buttons, a voice input microphone, or other means.

The data collection device 60 installed on the traffic signal 20 functions as an operation panel. By assigning an ID to each data collection device 60, the server 10 can identify the intersection 3, the traffic signal 20, or the signal light 21. This allows even users U who do not possess a user terminal 50 to input their opinions.

Furthermore, the data collection device 60 may determine the direction of user U. For example, the touch panel display 63 may display a map and ask user U about the direction they came from. Alternatively, the direction of user U can be determined by capturing images of the area around intersection 3 with a surveillance camera or similar device. Therefore, the traffic signal 21 that is the subject of the opinion can be easily identified.

Furthermore, the data collection device 60 may authenticate the user U performing the operation. This ensures that only pre-registered users U can input opinions, thus preventing mischief. The camera 65 captures the user U's face. The data collection device 60 performs user authentication, such as through facial recognition. Additionally, the age and gender of user U may be obtained by analyzing the image from the camera 65.

Figure 11 is a flowchart showing the information collection method of this embodiment. First, when user U crosses the pedestrian crossing, the user operates the information collection device (S301). The screen on the touch panel display 63 then changes to a question screen (S302). Here, the information collection device 60 may use the camera 65 to perform facial recognition, allowing only approved user U to input their opinion.

Then, user U operates the touch panel display 63 to answer the questions (S303). The data collection device 60 transmits the answers to the server 10 (S304). The server 10 stores the answer results (S305). Here, the server 10 may store information for each traffic signal 20 or signal light 21. The server 10 transmits the aggregated results to the control center 30 at regular intervals (S306). The administrator checks the aggregated data from the control center 30 and uses it to improve the operation of intersection 3 (S307).

In this way, opinions regarding the traffic signals 20 and intersection 3 can be easily collected, similar to embodiments 1 and 2. Furthermore, even users U who do not possess a user terminal 50 such as a smartphone can easily input their opinions. For example, elderly users U may not own a smartphone. Alternatively, users U who have not installed the app can also input their opinions. Even such users U can easily input their opinions.

Next, we will explain the questions used to collect opinions using Figures 12 and 13. Figures 12 and 13 are flowcharts illustrating the questions displayed on the user terminal 50. Here, we will describe an example where the collection device 60 sends questions to the user terminal 50, as shown in Embodiment 1. That is, the collection device 60 has the following questions pre-registered. When the collection device 60 sends a question to the user terminal 50, the user terminal 50 displays a message indicating the question. Of course, the server 10 may also send the questions to the user terminal 50, as in Embodiment 2. Alternatively, the collection device 60 may display the questions to the user U, as in Embodiment 3.

First, User U enters the necessary information (S401). For example, User U enters their User ID, gender, age, etc. Note that the User ID and other necessary information may be pre-registered in the application. Next, User Terminal 50 asks User U if they have any complaints about the intersection (S402).

If user U responds that they have no complaints (NO in S402), user terminal 50 terminates processing. User terminal 50 may also transmit a message indicating no complaints to collection device 60. If user U responds that they have complaints (YES in S402), user terminal 50 asks user U about the time they usually use the intersection (S403). After user U enters the time, user terminal 50 asks what the complaint is (S404). Here, user terminal 50 displays a message prompting the user to select from three options: "Other," "Signs/Traffic Lights," and "Traffic Signal Time."

If user U selects "Other" (S404), user terminal 50 displays a window for free-form text (S407). For example, when user terminal 50 displays a text input window, the user enters a text expressing dissatisfaction. Then, the process proceeds to S423.

If user U selects that they are dissatisfied with the "signs and traffic lights" (S404), the user terminal 50 will inquire about the nature of their dissatisfaction with the signs and traffic lights (S405). Here, the user terminal 50 displays a message allowing the user to choose from three options: "Other," "Signs and traffic lights are difficult to see," or "I would like sound at the intersection."

If user U selects "Other" (S405), user terminal 50 displays a window for free-form text (S407). For example, when user terminal 50 displays a text input window, the user enters a message expressing dissatisfaction. Once the user submits the message, the process proceeds to S423.

If user U selects "Signs/traffic lights are difficult to see" (S405, Signs/traffic lights are difficult to see), user terminal 50 asks user U for the reason (S406). Here, user terminal 50 displays a message prompting user U to select from two reasons for the difficulty in seeing: "The letters are faint/curved" or "There are obstacles/location is poor in front of/near the traffic lights."

If user U selects "The text is faint/curved" (as indicated in S406), the data collection device 60 or user terminal 50 identifies the direction to send the request (S408). As described in Embodiment 1, the data collection device 60 identifies the direction based on location information and radio wave strength. Alternatively, the user terminal 50 or the like outputs questions or messages to user U to help identify the direction.

Once the data collection device 60 identifies the route, it submits a request for repair of signal lights and signs to the server 10 (S409). Since the route has been identified, the administrator can then identify the signal lights or signs that require repair. This allows the administrator to properly manage the signal lights and signs. The process then proceeds to S423.

If User U selects "There is an obstacle in front of/near the signal light/the location is bad" (S406, "There is an obstacle in front of/near the signal light/the location is bad"), the data collection device 60 or the user terminal 50 will identify the route to send the request (S410). As described in Embodiment 1, the data collection device 60 identifies the route based on location information and radio wave strength. Alternatively, the user terminal 50 or the like will output questions or messages to User U to identify the route.

Once the data collection device 60 identifies the route, it submits a request to the server 10 for a change in the installation location of the signal lights and signs (S411). Since the route has been identified, the administrator can then identify the signal lights or signs that require a change in installation location. This allows the administrator to properly manage the signal lights and signs. The process then proceeds to S423.

If user U selects "I want sound at the intersection" (S405), the data collection device 60 or user terminal 50 identifies the direction from which the request is being made (S412). As described in Embodiment 1, the data collection device 60 identifies the direction based on location information and radio wave strength. Alternatively, the user terminal 50 or the like outputs questions or messages to user U to identify the direction.

Once the data collection device 60 identifies the route, it submits a request for the installation of the sound device to the server 10 (S413). Since the route has been identified, the administrator can determine the installation location of the sound device. This allows the administrator to install the sound device appropriately. The process then proceeds to S423.

The user terminal 50 displays a window for free-form text input (S407). For example, when the user terminal 50 displays a text input window, user U enters a text expressing dissatisfaction. Once the user submits the text, the process proceeds to S423.

If user U selects that they are dissatisfied with the "number of seconds" (the number of seconds in S404), user terminal 50 will inquire about the nature of their dissatisfaction with the number of seconds (S414). Here, user terminal 50 displays a message allowing the user to choose between two options: "The pedestrian's waiting time is too short" or "The pedestrian's waiting time is too long."

If User U selects "Pedestrian duration is short" (the duration of the pedestrian's blue light in S414 is short), the data collection device 60 or the user terminal 50 identifies the direction to which the request should be made (S415). As described in Embodiment 1, the data collection device 60 identifies the direction based on location information and radio wave strength. Alternatively, the user terminal 50 or the like outputs questions or messages to User U to help identify the direction.

Once the data collection device 60 identifies the direction of travel, it determines whether user U is elderly or not (S416). If user U is not elderly (NO in S416), the data collection device 60 submits a request to extend the green light duration of the pedestrian signal light (S417). If user U is elderly (YES in S416), the data collection device 60 submits a request to install a push button for elderly users (S418). Since user U's direction of travel is identified, the administrator can easily pinpoint the location of the traffic signal 20, etc., that needs improvement.

If user U selects "Pedestrian waiting time is long" (Pedestrian waiting time is long in S414), the data collection device 60 or user terminal 50 identifies the direction to send the request (S419). As described in Embodiment 1, the data collection device 60 identifies the direction based on location information and radio wave strength. Alternatively, the user terminal 50 or the like outputs questions or messages to user U to help identify the direction.

The user terminal 50 inquires with user U whether there are many pedestrians using intersection 3 (S420). If user U inputs that there are many pedestrians (YES in S420), the data collection device 60 submits a request to the server 10 to review the split ratio of the traffic signal 20 (S421). If user U inputs that there are few pedestrians (NO in S420), the data collection device 60 submits a request to the server 10 for a stop-type recall (S422). Then, the process proceeds to S423.

When processing S407, S409, S411, S413, S417, S418, S421, or S422 is completed, the user terminal 50 asks user U for any other complaints (S423). If user U indicates that there are other complaints, the process returns to S404, and the user terminal 50, etc., repeats the processing. If user U indicates that there are no other complaints, the process ends.

In this way, since the user terminal 50 displays multiple-choice questions, user U can easily input their complaints. The requests extracted from these complaints are then sent to the server 10. This allows the administrator to appropriately improve the traffic signals 20 and other systems.

The processing of the server 10, user terminal 50, or data collection device 60 can be implemented by a computer program. In other words, the server 10, user terminal 50, or data collection device 60 is an information processing device equipped with memory for storing programs and a processor for executing programs. Furthermore, the server 10 or data collection device 60 is not limited to a single physical device, but may be a distributed system. Part of the processing of the data collection device 60 may be executed by the server 10 or user terminal 50, etc.

Furthermore, the programs for the aforementioned data collection device 60, user terminal 50, and server 10, when loaded into a computer, include a set of instructions (or software code) for causing the computer to perform one or more of the functions described in the embodiment. The programs may be stored in non-temporary computer-readable media or tangible storage media. Examples, but not limited to, include random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD), or other memory technologies, CD-ROM, digital versatile disc (DVD), Blu-ray® disc, or other optical disc storage, and magnetic storage devices. The programs may be transmitted over temporary computer-readable media or communication media. Examples, but not limited to, include electrical, optical, acoustic, or other forms of propagating signals.

Furthermore, the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the spirit of the invention.

U User 1 Main road 2 Secondary road 3 Intersection 4a-4d Pedestrian crossing 10 Server 20 Traffic signal 21 Signal light 21V, 21Va-21Vd Vehicle signal light 21P, 21Pa-21Pd Pedestrian signal light 22a-22d Utility pole 24 QR code 26 Red signal light 27 Green signal light 30 Control center 40 Traffic signal controller 50 User terminal 60 Data collection device 61 Communication unit 62 Processing unit 63 Touch panel display 64 Input/output unit 65 Camera 100 Information collection system

Claims (12)

An information collection system that collects information related to traffic signals,
A traffic signal having a signal light and a traffic signal controller that controls the signal light,
The collection device is installed in accordance with the aforementioned traffic signal controller,
The aforementioned collection device
A request signal is sent to the user terminals of users located near the aforementioned traffic signal.
When a response signal is received from the user terminal that received the request signal, a question is sent to the user terminal to collect information about the traffic signal .
The user terminal receives the answer to the question entered,
Information corresponding to the answers to the aforementioned questions will be transmitted to the server and the control center.
Information gathering system. The information gathering system according to claim 1, wherein the gathering device identifies the user's direction based on the radio wave intensity of the signal received from the user terminal. The information gathering system according to claim 2, which identifies the user's route based on the illumination status of the signal light. An information collection system that collects information related to traffic signals,
A server that collects information from user terminals of users located near the aforementioned traffic signal,
The traffic signal system comprises a signal light and a traffic signal controller that controls the signal light,
The aforementioned traffic signal is equipped with access information to the aforementioned server.
When the user accesses the server based on the access information using a user terminal,
The server sends a question to the user terminal to collect information about the traffic signal ,
The server receives information based on the answers entered by the user from the user terminal.
Information gathering system. The information collection system according to claim 4, wherein the access information is a QR code provided on the traffic signal controller. The information collection system according to claim 1 or 4, which identifies the user's route based on the location information of the user terminal. The information gathering system according to claim 1 or 4, wherein the user terminal displays the question at a timing corresponding to the illumination status of the signal light. An information collection system that collects information related to traffic signals,
A traffic signal comprising a signal light and a traffic signal controller that controls the signal light,
The collection device is installed in accordance with the aforementioned traffic signal controller,
The aforementioned collection device is
A display unit that displays questions to users near the traffic signal in order to collect information about the traffic signal ,
An input device that receives input of answers from the user to the aforementioned questions,
The system includes a communication unit that transmits information corresponding to the answers to the aforementioned questions to a server and a control center.
Information gathering system. An information gathering system according to claim 1, 4, or 8, which identifies the user's route based on data input by the user. An information collection method for collecting information relating to a traffic signal having a signal light and a traffic signal controller that controls the signal light,
The collection device installed in accordance with the aforementioned traffic signal controller,
A request signal is sent to the user terminals of users located near the aforementioned traffic signal.
When a response signal is received from the user terminal that received the request signal, a question is sent to the user terminal to collect information about the traffic signal .
The user terminal receives the answer to the question entered,
Information corresponding to the answers to the aforementioned questions will be transmitted to the server and the control center.
Information gathering methods. An information collection method for collecting information relating to a traffic signal having a signal light and a traffic signal controller that controls the signal light,
The aforementioned traffic signal is equipped with access information to a server that collects information from user terminals.
When a user accesses the server using the user terminal based on the access information, the server sends a question to the user terminal to collect information about the traffic signal .
An information collection method wherein the server receives information based on the answers entered by the user from the user terminal. An information collection method for collecting information relating to a traffic signal system comprising a signal light and a traffic signal controller that controls the signal light,
The collection device installed in accordance with the aforementioned traffic signal controller,
To users in the vicinity of the aforementioned traffic signal, a question is displayed to collect information about the aforementioned traffic signal .
The user provides input of their response to the aforementioned question.
Information corresponding to the answers to the aforementioned questions will be transmitted to the server and the control center.
Information gathering methods.