JP7130443B2 - Operation recording device - Google Patents

Description

The present disclosure relates to a traffic recorder.

2. Description of the Related Art Conventionally, there has been known a driving recorder such as a digital tachograph that is mounted on a vehicle and that can confirm the vehicle status in real time by sending driving records such as vehicle speed to a data center. Since multiple electronic devices with different communication standards are installed in vehicles such as those equipped with operation recorders, even if signals of multiple types of communication standards are mixed, the corresponding communication standard will automatically be used. There has been proposed a device that is adaptive and communicates (see, for example, Patent Document 1).

JP 2010-171910 A

However, the conventional technology as described in Patent Document 1 is for communication between electronic devices installed in a vehicle. On the other hand, the communication module unit installed in the operation recording device communicates with a server provided outside the vehicle, and uses a specific communication method, for example, one generation such as the third generation mobile communication system. Communication setting setup processing is executed on the premise that wireless communication will be performed by the communication method. Therefore, the communication module unit is designed for a communication environment in which communication methods of different generations coexist, for example, a communication environment in which the communication method of the third generation mobile communication system and the communication method of the fourth generation mobile communication system coexist. Communication setting setup processing is executed without assuming

Specifically, in a communication environment where communication methods of the 3rd generation mobile communication system and communication methods of the 4th generation mobile communication system are mixed, Despite the possibility that either one of the communication modules may be attached, in the prior art, the communication module unit performs wireless communication on the premise of only one communication method like the third generation mobile communication system. Communication setting setup processing is executed without specifying the communication method to be used. Therefore, even if the communication module unit is compatible with the communication scheme of the fourth generation mobile communication system, setup processing for communication settings compatible with the communication scheme of the third generation mobile communication system may be executed. Therefore, there is a possibility that the operation recorder cannot communicate wirelessly with the data center because the setup processing of the communication settings of the communication module section is not executed correctly. In other words, in the conventional technology described above, there is a possibility that wireless communication cannot be performed in a communication environment where one communication method and another communication method are expected to coexist.

The present disclosure has been made in view of this situation, and even in a communication environment where one communication method and another communication method are expected to coexist, wireless communication can be performed. to be able to do so.

An operation recording device, which is one aspect of the present disclosure, is an operation recording device that transmits operation records to a server, and includes a communication module that performs wireless communication with the server, and a communication method in which the communication module performs wireless communication. a storage unit that stores module information to be specified, wherein the storage unit stores the module information transferred from the communication module unit when a setup process of communication settings for wireless communication is performed for the first time, and the communication When the setup process is performed for the first time, the module unit stores the communication settings when the setup process is executed and the destination IP address of the server based on a setup command corresponding to the module information stored in the storage unit. and are set .

Further, in the operation recording device which is one aspect of the present disclosure, the storage unit develops a communication program for wirelessly communicating with the server based on communication settings when the setup process is executed, and the communication module unit performs wireless communication based on the communication program developed in the storage unit, and the communication program preferably refers to the destination IP address of the server.

Further, in the operation recording device which is one aspect of the present disclosure, the communication module unit sets the destination IP address of the server based on a setup command according to the module information when the setup process is performed for the second time or later. preferably.

According to one aspect of the present disclosure, wireless communication can be performed even in a communication environment where one communication method and another communication method are expected to coexist.

It is a figure showing an example of functional composition of operation record device 3 concerning an embodiment to which this indication is applied. FIG. 10 is a diagram showing a system configuration example and a control sequence example when the setup process according to the embodiment to which the present disclosure is applied is performed for the first time; FIG. 10 is a flowchart illustrating first processing when setup processing is performed for the first time according to an embodiment to which the present disclosure is applied; FIG. FIG. 11 is a flowchart illustrating second processing when the setup processing according to the embodiment to which the present disclosure is applied is the second time or later; FIG.

Embodiments of the present disclosure will be described below based on the drawings, but the present disclosure is not limited to the following embodiments.

FIG. 1 is a diagram showing a functional configuration example of a travel recording device 3 according to an embodiment to which the present disclosure is applied. As shown in FIG. 1 , the information processing system 1 includes a server 103 and an operation recording device 3 . The information processing system 1 transmits, to the server 103, a vehicle operation record such as vehicle speed recorded by an operation recording device 3 mounted on the vehicle, via a network 2 capable of communication using a wireless medium or a wired medium. In this way, the operation recording device 3 functions as a digital tachograph, so that the server 103 can acquire the vehicle status based on the operation record in real time. The information processing system 1 has a terminal 101 . The terminal 101 is connected to the operation recording device 3 via a wireless medium or a wired medium, and can cause the operation recording device 3 to execute setup processing of the operation recording device 3 according to a command from the terminal 101 . Although details of the setup process will be described later, the operation recording device 3 can also execute the setup process without an instruction from the terminal 101 .

The operation recording device 3 can communicate with the server 103 and transmits operation records to the server 103 . The server 103 is set for communication in one of the communication schemes included in, for example, 3G, which is the third generation mobile communication system, or 4G, which is the fourth generation mobile communication system. Among 3G mobile communication systems, 3G communication methods include W-CDMA (Wideband-Code Division Multiple Access) or CDMA2000, and 3.5G communication methods include HSPA (High Speed Packet Access). ) or EV-DO (Evolution-Data Optimized), and the 3.9th generation communication system includes LTE (Long-Term Evolution). The fourth generation communication scheme includes LTE-Advanced. If the server 103 adopts the communication method of the third generation mobile communication system, communication settings are made for any communication method such as W-CDMA, CDMA2000, HSPA, or EV-DO. If the server 103 adopts the communication method of the fourth generation mobile communication system, LTE-Advanced communication settings are made. The operation recording device 3 can communicate with the server 103 if the same communication setting as the communication method employed by the server 103 is made.

Therefore, if the server 103 uses one of the communication methods included in the same generation mobile communication system, for example, the third generation mobile communication system, the operation recorder 3 must also be set to the same communication method. If the server 103 uses a communication method included in the fourth generation mobile communication system, the same communication method, that is, the LTE-Advanced communication setting must be set for the operation recorder 3 as well. Supposing that the server 103 is set for the communication method included in the fourth generation mobile communication system and the operation recording device 3 is set for the communication method of the third generation mobile communication system, the server 103 side self The server 103 and the operation recording device 3 cannot communicate with each other unless the process for making them compatible with the communication method is executed. In the following description, an example in which communication settings are made for each communication method of the third generation mobile communication system and the fourth generation mobile communication system will be described. Communication settings for each of the other one communication methods may be made.

The operation recording device 3 includes a CPU 31 , an LCD (Liquid Crystal Display) 32 , a buzzer 33 , a communication module section 34 , a speed interface section 35 , an engine interface section 36 , a power supply interface section 37 and a storage section 50 . The operation recording device 3 acquires and sequentially records vehicle speed and engine speed as operation records. The CPU 31 comprehensively controls the operation recorder 3 functioning as a digital tachograph. The LCD 32 has a function of providing information to the driver by image display as a display unit. The buzzer 33 has a function of calling the driver's attention as an audio warning unit when it is determined that the driver is driving in a manner that deviates from predetermined safe driving conditions. The speed interface unit 35 is connected to each of the CPU 31 and the vehicle speed sensor 6 and supplies the CPU 31 with speed pulses input from the vehicle speed sensor 6 . The vehicle speed sensor 6 is attached to the vehicle on which the operation recording device 3 is mounted, converts the detected vehicle speed into a speed pulse, and outputs the speed pulse. Based on the input speed pulse, the CPU 31 obtains the speed of the host vehicle, that is, the vehicle speed, and stores it in the storage unit 50 . The engine interface unit 36 is connected to the CPU 31 and the engine rotation sensor 7 respectively, and supplies engine pulses input from the engine rotation sensor 7 to the CPU 31 . The engine rotation sensor 7 is attached to the vehicle equipped with the operation recording device 3, converts the detected engine rotation speed into an engine pulse, and outputs the engine pulse. The CPU 31 obtains the engine speed of the host vehicle based on the input engine pulse, and stores it in the storage unit 50 .

The power interface unit 37 is connected to the battery 11 via the +12V line and the ignition line, and supplies power supplied from the battery 11 to the operation recorder 3 . The +12V line always supplies power to the power interface section 37 . Therefore, the power supply interface unit 37 supplies the power supplied from the +12V line to the parts that require constant power supply. An ignition switch 12_1 is provided on the ignition line. The ignition line supplies power to the power interface unit 37 when the ignition switch 12_1 is turned on. A vehicle lamp (not shown) is connected to the battery 11 via an illumination line. A lighting switch 12_2 is provided in the illumination line. Therefore, when the lighting switch 12_2 is turned on, power is supplied to the vehicle lamp (not shown). Note that the ignition switch 12_1 and the lighting switch 12_2 are collectively referred to as the switch 12 .

The communication module unit 34 wirelessly communicates with the server 103 . Various data are transmitted and received between the communication module unit 34 and the server 103 by wireless communication via a wireless medium. The communication module unit 34 performs a setup process for communication settings for wireless communication according to the module information. The storage unit 50 develops a communication program for wirelessly communicating with the server 103 based on the communication settings when the setup process is executed. The communication module section 34 performs wireless communication based on a communication program developed in the storage section 50 . The communication program refers to the destination IP address of server 103 . The manufacturing number and model name of the operation recording device 3 need not be stored in the storage unit 50 in the process of executing the setup process, but the manufacturing number of the operation recording device 3 is checked in processes other than the setup process.

Next, module information will be specifically described. The communication module unit 34 holds module information. The module information specifies the communication method in which the communication module section 34 performs wireless communication, and is stored in the storage section 50 . The module information includes information specifying the type of communication system of either the third generation mobile communication system or the fourth generation mobile communication system. The CPU 31 causes the storage unit 50 to store the determination result of the communication method. For example, when the module information is requested by the CPU 31 during execution of the setup process, the communication module unit 34 returns the held module information. The CPU 31 determines the communication method based on the module information returned from the communication module section 34 .

The setup process is a process of acquiring module information, setting wireless communication, and setting a destination IP address. Communication settings for wireless communication are settings for communication contents such as the communication method and communication speed. For example, in the third generation mobile communication system, one of W-CDMA, CDMA2000, HSPA, EV-DO, and LTE is set. When the W-CDMA communication method is set, the communication speed is set corresponding to the W-CDMA communication method, and the frequency band is also set according to the area of use. The destination IP address is set to correspond to the communication method of the third generation mobile communication system. On the other hand, if it is a 4th generation mobile communication system, the LTE-Advanced communication method is set, the communication speed is set to correspond to the LTE-Advanced communication method, and the frequency band is set according to the area of use. be done. The destination IP address is set to correspond to the communication method of the fourth generation mobile communication system.

The storage unit 50 develops a communication program for wirelessly communicating with the server 103 based on the communication settings when the setup process is executed. The communication program functions in the operation recording device 3 as firmware, for example, but is configured as application software executed on an OS (Operating System) via various APIs (Application Programming Interface). may The communication module section 34 performs wireless communication based on a communication program developed in the storage section 50 . The communication program refers to the destination IP address of server 103 . A subnet mask is also set in addition to the destination IP address. This enables wireless communication with the designated server 103 .

Specifically, when the setup process is performed for the first time, the storage unit 50 stores the module information transferred from the communication module unit 34 . When the setup process is performed for the first time, the communication module unit 34 sets the communication settings when the setup process is executed and the destination IP address of the server 103 based on the setup command according to the module information stored in the storage unit 50. is set. The CPU 31 determines whether or not the setup process is performed for the first time when the ignition switch 12_1 is turned on. If the setup process is performed for the second time or later, the destination IP address of the server 103 is set based on the setup command according to the module information.

The storage unit 50 is composed of a nonvolatile memory. The storage unit 50 stores various programs and data for the CPU 31 to implement the functions of the operation recording device 3 . As for the operation record, the storage unit 50 stores, for example, the limit values of the vehicle speed and the engine speed. Also stored is the destination IP address of the server 103 described above. The storage unit 50 records the operation records that have reached a certain amount in a different memory space each time the number of operation records to be recorded reaches a certain amount. The storage unit 50 also records GPS data acquired from a GPS (not shown) in addition to the vehicle speed and engine speed. GPS data is used to calculate travel distance and travel time. The storage unit 50 stores module information transferred from the communication module unit 34 .

FIG. 2 is a diagram showing a system configuration example and a control sequence example when the setup process according to the embodiment to which the present disclosure is applied is the first time. The processing of steps S11 to S21 is initial setup processing. In step S<b>11 , the terminal 101 starts setting up the communication module section 34 . In step S<b>12 , the CPU 31 transmits a module information acquisition command to the communication module section 34 . In step S<b>13 , the communication module section 34 transmits module information to the CPU 31 . In step S14, the CPU 31 determines from the received module information whether the communication system is the third generation mobile communication system or the fourth generation mobile communication system. In step S15, the storage unit 50 records the received module information. In step S<b>16 , CPU 31 transmits a setup command to communication module section 34 . If the setup command is for the third generation mobile communication system, the argument for the fourth generation mobile communication system is insufficient. It determines which of the 4th generation mobile communication systems is supported, and transmits a setup command according to the determination result. Therefore, the sent setup command is correct. Also, if the module information is not stored in the communication module unit 34, a setup command compatible with the conventional third generation mobile communication system may be transmitted. The setup command includes communication settings for wireless communication and processing for setting a destination IP address.

In step S<b>17 , the communication module unit 34 transmits a setup completion response to the CPU 31 . In step S18, the CPU 31 determines a setup completion response. In step S19, the storage unit 50 records the setup result. The setup result is derived from the determination result of the setup complete response. In step S<b>20 , the operation recorder 3 transmits the setup result of the communication module section 34 to the terminal 101 . In step S21, the terminal 101 records the setup result. If the setup process is performed for the second time or later, the process of acquiring the module information and the communication setting of the wireless communication are unnecessary, so the process of setting the destination IP address may be executed. Therefore, if the setup process is performed for the second time or later, the setup command should include the process of setting the destination IP address. Also, the setup process is executed each time the operation recorder 3 is activated. Moreover, even when a problem such as communication failure of the operation recording device 3 occurs, the setup process is executed when the operation recording device 3 is activated.

FIG. 3 is a flowchart illustrating the first process when the setup process according to the embodiment to which the present disclosure is applied is performed for the first time. Note that the operation recorder 3 is in the PEr2 state at the start of the process of step S31. The PEr2 state is a state in which various programs such as a communication program are developed in the logical space of the storage unit 50, but the function table for managing whether or not ETC is connected, etc. is not developed in the logical space of the storage unit 50. be. Therefore, in the PEr2 state, the operation recorder 3 does not operate. Therefore, the PEr2 state usually exists only before shipment from the factory.

In step S<b>31 , the CPU 31 starts initial setup of the communication module section 34 . In step S<b>32 , the CPU 31 acquires module information of the communication module section 34 . In step S33, the CPU 31 determines whether or not the module information has been obtained. When determining that the module information has been acquired (step S33; Y), the CPU 31 proceeds to the process of step S34. When determining that the module information could not be acquired (step S33; N), the CPU 31 proceeds to the process of step S43. In step S34, the CPU 31 determines whether the module information is the third generation mobile communication system or the fourth generation mobile communication system.

When the CPU 31 determines that the module information is the third generation mobile communication system (step S34; 3G), the process proceeds to step S35. In step S35, the CPU 31 causes the storage section 50 to record that the communication module section 34 for the third generation mobile communication system is installed. In step S36, the CPU 31 transmits a setup command for the third generation mobile communication system to the communication module section 34, and proceeds to the process of step S37. When the CPU 31 determines that the module information is the fourth generation mobile communication system (step S34; 4G), the process proceeds to step S41. In step S41, the CPU 31 causes the storage section 50 to record that the communication module section 34 for the fourth generation mobile communication system is installed. In step S42, the CPU 31 transmits a setup command for the fourth generation mobile communication system to the communication module section 34, and proceeds to the process of step S37. If the module information is neither the third generation mobile communication system nor the fourth generation mobile communication system (step S34; neither 3G nor 4G), the CPU 31 proceeds to the process of step S43.

In step S37, CPU 31 determines whether or not a setup completion response has been received. If the CPU 31 determines that it has received the setup completion response (step S37; Y), it proceeds to the process of step S38. When determining that the setup completion response has not been received (step S37; N), the CPU 31 continues the process of step S37. In step S38, the CPU 31 determines whether the setup completion response is success or failure. When the CPU 31 determines that the setup completion response is successful (step S38; success), the process proceeds to step S39. In step S39, the CPU 31 causes the storage unit 50 to record the setup result OK of the communication module unit 34, and shifts to the processing of step S40. When the CPU 31 determines that the setup completion response is unsuccessful (step S38; unsuccessful), the process proceeds to step S43. In step S43, the CPU 31 stores the NG setup result of the communication module section 34 in the storage section 50, and proceeds to the process of step S40. In step S40, the CPU 31 transmits the setup result of the communication module section 34 to the terminal 101, and ends the processing of steps S31 to S40.

FIG. 4 is a flowchart illustrating second processing when the setup processing according to the embodiment to which the present disclosure is applied is the second time or later. In step S51, the CPU 31 determines whether or not the operation recorder 3 is activated. Whether or not the operation recording device 3 is in the activated state may be determined by determining whether or not the ignition switch 12_1 is turned on. When the CPU 31 determines that the operation recording device 3 is in the activated state (step S51; Y), the process proceeds to step S52. CPU31 continues the process of step S51, when it determines with the operation recording device 3 not being an active state (step S51; N). In step S52, the CPU 31 determines whether the initial setup has been completed. When the CPU 31 determines that the initial setup has been completed (step S52; Y), the process proceeds to step S53. When the CPU 31 determines that the initial setup has not been completed (step S52; N), the process proceeds to step S60. In step S60, the first process is executed and the second process ends. The first process is the process of steps S31 to S43. Note that the initial setup is the processing of steps S31 to S40 described above. Therefore, for example, when the process of step S40 ends, the initial flag indicating that the initial setup has been completed is set to 1, and the process of step S52 may determine whether or not the initial flag is 1. .

In step S53, the CPU 31 determines whether the module information is the third generation mobile communication system, the fourth generation mobile communication system, or none. When the CPU 31 determines that the module information is the fourth generation mobile communication system (step S53; 4G), the process proceeds to step S54. In step S54, the CPU 31 transmits a setup command for the fourth generation mobile communication system to the communication module section 34, and proceeds to the process of step S55. When the CPU 31 determines that the module information is the third generation mobile communication system or none (step S53; 3G or none), the process proceeds to step S59. In step S59, the CPU 31 transmits a setup command for the third generation mobile communication system to the communication module section 34, and proceeds to the process of step S55.

In step S55, CPU 31 determines whether or not a setup completion response has been received. When determining that the setup completion response has been received (step S55; Y), the CPU 31 proceeds to the process of step S56. When determining that the setup completion response has not been received (step S55; N), the CPU 31 continues the process of step S55. In step S56, the CPU 31 determines whether the setup completion response is success or failure. When the CPU 31 determines that the setup completion response is successful (step S56; success), the process proceeds to step S57. In step S57, the CPU 31 outputs that the communication module section 34 is ready for data communication, and ends the processing of steps S51 to S59. It should be noted that it is not necessary to output that the communication module unit 34 is in a data communication enabled state. Further, the LCD 32 or the buzzer 33 may inform the operator that the communication module section 34 is ready for data communication by outputting that the communication module section 34 is ready for data communication. When the CPU 31 determines that the setup completion response is unsuccessful (step S56; unsuccessful), the process proceeds to step S58. In step S58, the CPU 31 outputs that the communication module section 34 is in an error state, and terminates the processing of steps S51 to S59. By outputting that the communication module section 34 is in an error state, the LCD 32, the buzzer 33, or the like may notify the operator that the communication module section 34 is in an error state.

From the above description, in the present embodiment, the storage unit 50 stores module information specifying a communication method by which the communication module unit 34 performs wireless communication. The communication module unit 34 performs a setup process for communication settings for wireless communication according to the module information stored in the storage unit 50 . Therefore, the communication module section 34 can perform wireless communication using a communication method compatible with the communication module section 34 . Therefore, wireless communication can be performed even in a communication environment in which one communication method and another communication method are expected to coexist.

Further, in this embodiment, the communication module section 34 performs wireless communication based on a communication program developed in the storage section 50 . The communication program performs wireless communication with the server 103 based on the communication settings for wireless communication when the setup process is executed, and refers to the destination IP address of the server 103 . Therefore, when changing the communication settings of wireless communication when the setup process is executed, the communication program should be rewritten. Therefore, the communication settings of the wireless communication when the setup process is executed can be changed by changing the software, i.e., the internal program, without changing the hardware. can be upgraded.

Further, in the present embodiment, the storage unit 50 stores the module information transferred from the communication module unit 34 when the setup process is performed for the first time. When the setup process is performed for the first time, the communication module unit 34 sets the communication settings for wireless communication and the destination of the server 103 when the setup process is executed based on the setup command according to the module information stored in the storage unit 50. IP address is set. Therefore, the module information held by the communication module section 34 can be acquired. Therefore, various settings related to wireless communication can be performed using a communication method suitable for the communication module unit 34 .

Further, in the present embodiment, the communication module unit 34 sets the destination IP address of the server 103 based on the setup command according to the module information when the setup process is performed for the second time or later. When the setup process is performed for the second time or later, the module information transferred from the communication module section 34 to the storage section 50 via the CPU 31 when the setup process is performed for the first time is used. Therefore, even if the communication module unit 34 corresponds to either the third generation mobile communication system, i.e. one, or the fourth generation mobile communication system, i.e. another one, the communication system is correctly set up. Device 3 is capable of wireless communication with server 103 .

The information processing system 1 to which the present disclosure is applied has been described above based on the embodiment, but the present disclosure is not limited to this, and modifications may be made without departing from the gist of the present disclosure.

For example, in the present embodiment, an example in which module information corresponding to each communication method of the third generation mobile communication system and the fourth generation mobile communication system is stored has been described, but the present invention is not particularly limited to this. For example, module information corresponding to the communication method of the fifth generation mobile communication system may be stored. The module information corresponding to the communication method of the fifth generation mobile communication system may be processed in the same manner as the module information corresponding to the communication method of the fourth generation mobile communication system.

As is well known to those skilled in the art, the third-generation mobile communication system is a communication system conforming to the IMT-2000 (International Mobile Telecommunications 2000) standard defined by the International Telecommunications Union. Among third-generation mobile communication systems, for example, W-CDMA is IMT-DS (Direct Speed) in the IMT-2000 standard, and UTRA-FDD (UMTS Terrestrial Radio Access-FDD) in the 3GPP (Third Generation Partnership Project) standard. HSPA is defined in a standard that is an extension of W-CDMA for higher speed. The 4G mobile communication system is a wireless communication system conforming to the IMT-Advanced standard defined by the International Telecommunications Union. Among the fourth-generation mobile communication systems, LTE-Advanced is a wireless communication system positioned as a successor to LTE. The 5th generation mobile communication system is a next-generation wireless communication system that is currently being standardized. In other words, the difference between one communication method and another communication method in the present disclosure is not only that the generations are different but also that at least the conforming standards are different. It should be noted that one communication method and another communication method in the present disclosure are different in conforming standards, but are not limited thereto, and differ in at least one of the method, system, device type, and manufacturing vendor. can be anything.

Also, in the present embodiment, an example in which vehicle speed and engine speed are recorded as operation records has been described, but the present invention is not particularly limited to this. For example, acceleration, intersection approach speed, blinker timing, and other vehicle status information may be used. For example, it may be image information or the like acquired during operation.

1 information processing system 2 network 3 operation recorder 31 CPU 32 LCD 33 buzzer 34 communication module section 35 speed interface section 36 engine interface section 37 power supply interface section 50 storage section 6 vehicle speed sensor 7 engine rotation sensor 11 battery, 12 switch 12_1 ignition switch, 12_2 lighting switch 101 terminal, 103 server

Claims (3)

An operation recording device that transmits operation records to a server,
a communication module unit that wirelessly communicates with the server;
a storage unit that stores module information that specifies a communication method in which the communication module unit performs wireless communication;
with
The storage unit
when the setup process of communication settings for wireless communication is performed for the first time, the module information transferred from the communication module unit is stored;
The communication module section
When the setup process is performed for the first time, the communication settings when the setup process is executed and the destination IP address of the server are set based on the setup command according to the module information stored in the storage unit. Ru
An operation recording device characterized by the following. The storage unit
deploying a communication program for wirelessly communicating with the server based on the communication settings when the setup process is executed;
The communication module section
Wireless communication is performed based on the communication program developed in the storage unit,
The communication program is
referencing the destination IP address of the server;
The operation recorder according to claim 1, characterized by: The communication module section
If the setup process is performed for the second time or later, the destination IP address of the server is set based on a setup command according to the module information.
The operation recording device according to claim 1 or 2 , characterized in that:

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