JP4122853B2 - Professional vehicle management system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention detects the state of the commercial vehicle by the detection means mounted on the commercial vehicle, and comprehensively receives the detected state of the commercial vehicle as vehicle information. It is related with the business vehicle management system which manages.
[0002]
[Prior art]
2. Description of the Related Art In recent years, business vehicle management systems have been developed that allow businesses that provide various services using vehicles to manage the state of business vehicles that they own. A typical example of such a system is a commercial vehicle operation management system used by a taxi company. In this system, the state of the vehicle is detected by detection means mounted on each taxi (business vehicle).
[0003]
More specifically, for example, the current position of a taxi and information on the dynamics of actual and empty vehicles such as “forwarding”, “empty”, “passing” or “rental” are detected, and the detected information is transmitted via a connected cable. The information (the state of the business vehicle) is transmitted as vehicle information from the transmission means to, for example, a management center (management means) that manages each taxi by radio. In this way, a system that allows the manager of the business operator to manage each taxi in real time is being developed, and the social needs of this system are increasing.
[0004]
In addition to the taxi operators mentioned above, business operators that use business vehicles such as buses, trucks, cash transport vehicles, and cold trucks can also be applied to vehicle operation management, etc. It can be applied to the temperature monitoring of the cargo compartment that it has.
[0005]
[Problems to be solved by the invention]
However, the operator loses the vehicle management function because the signal transmitted through the cable connected between the detecting means for acquiring the vehicle information and the transmitting means is interrupted by some trouble. Become. As a reason why the signal transmitted through the cable is interrupted, for example, the cable is cut due to an accident. Another reason why the signal transmitted through the cable is interrupted is that, for example, the driver of the business vehicle intentionally disconnects the cable. This is expected to be done intentionally because the driver of the vehicle does not want the management center to know the current position, dynamics, operation, etc. of the vehicle he is driving.
[0006]
In such a case, when the number of vehicles to be managed in the management center increases, there arises a problem that such a faulty vehicle is overlooked or discovery is delayed. Therefore, as a means for solving such a problem, it is conceivable to perform control so that the signals of the detection means are sequentially monitored in each vehicle. However, in order to sequentially monitor the signals of each of such detection means, for example, even if a sensor signal of a vehicle speed sensor for detecting the current position information of the vehicle is applied as a monitoring signal, it is detected that the cable has been disconnected. I can't do it.
[0007]
This is because in the vehicle, the vehicle speed is detected based on the detection of the vehicle speed pulse by the vehicle speed sensor, but if the vehicle speed pulse is not detected, only the vehicle is detected to be stopped. Therefore, it is impossible to determine whether the transmission signal of the cable is blocked or the vehicle is stopped.
[0008]
Similarly, for example, even if a wiper signal generated when a wiper device for removing rainwater attached to the glass of a vehicle is operated is used as the monitoring signal described above, it is detected that the cable is cut off. Can not. This is because if the wiper device is not operating, it is determined that the sky is clear, and it cannot be determined that the signal transmitted through the cable is interrupted.
[0009]
The present invention has been made in view of the above circumstances, and an object of the present invention is to detect a state of the business vehicle by detecting means mounted on the business vehicle, and to detect the detected state of the business vehicle as vehicle information. In a system that manages the state of a business vehicle based on receiving as a whole, even if the cable provided for communication between the detection means and the management means is disconnected due to an accident, the cable It is an object of the present invention to provide a business vehicle management system that allows an administrator to instantly find the interruption of a cable transmission signal even if the driver of the business vehicle is intentionally disconnected.
[0010]
[Means for Solving the Problems]
According to the business vehicle management system of the first aspect, when the signal transmitting the cable is interrupted , the management signal transmitting the backup signal line integrated with the cable to the server is also interrupted. In this case, the server provided business operations for the vehicle, sequentially monitors a management signal generating means generates, for notifying to the information center via a transmission means detects that the management signal is interrupted, the management means The interruption of the cable transmission signal can be detected instantaneously. As a result, the manager can instantly detect the interruption of the transmission signal of the cable.
[0011]
According to the business vehicle management system of claim 2, since the generating means generates a pulse-like periodic signal as a management signal, the management signal is interrupted and notified to the management means when the transmission signal of the cable is cut off. By doing so, the recognition means can recognize, and it becomes easier to recognize that the management signal has changed.
[0012]
In each of such cases, the backup signal line is integrally provided in the cable including the signal line for detecting the current position of the business vehicle as in the invention described in claim 3. It is possible to prevent as much as possible that the current position of can not be captured.
[0013]
Further, in the invention described above, as in the invention described in claim 4 or 5, a backup signal line may be integrally provided in a cable including a signal line for acquiring taxi movement information, or in a cold car. A backup signal line may be integrally provided in a cable including a temperature sensor signal line for acquiring temperature information of a cargo compartment having a cold insulation function.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a commercial vehicle operation management system for managing a taxi owned by a taxi operator will be described with reference to the drawings.
In FIG. 1 schematically showing a commercial vehicle operation management system (business vehicle management system: hereinafter abbreviated as a management system) 1, the management system 1 is a server (on-vehicle device) mounted on a taxi vehicle (business vehicle) 2. , Transmission means) 3. The server 3 that also functions as a notification means is mainly composed of a CPU, a ROM, a RAM (all not shown), etc., and is equipped with an auxiliary power supply circuit 3a.
[0015]
The server 3 is connected to a power supply control circuit 4 having a battery 4a. The power supply control circuit 4 is connected to an ACC (accessory) position, an ON position, and a START position from an ignition position of a taxi vehicle 2 (not shown) from an OFF position. As a result, the server 3 is supplied with power as an ACC power source.
[0016]
A wireless communication device 5 is connected to the server 3. The wireless communication device 5 is a mobile phone capable of digital communication, for example, and is configured to be able to communicate with the outside by a wireless carrier having a predetermined frequency in response to a request from the server 3.
[0017]
In the server 3, a harness (assembled wire) 6 as a cable is connected to the input terminal 3 b of the server 3. The harness 6 is a bundle of electric wires necessary for transmitting information and dynamic information of various sensors mounted on the taxi vehicle 2, and has connectors 6a and 6b at both ends of the plural electric wires. . Specifically, a plurality of copper wires are provided in close proximity and parallel to each other, for example, coated and insulated with a resin, and a connector 6 a is connected to the input terminal 3 b of the server 3. The harness 6 has a backup signal line 6c and a ground line (not shown).
[0018]
The server 3 includes a taximeter (detection means) 7, a vehicle speed sensor (detection means) 8, a GPS (Global Positioning System) receiver (detection means) 9, a wiper device (detection means) 10, and the like. A pulse generator 11 or the like as means is connected.
[0019]
The taxi meter 7 calculates and displays a fare according to the travel distance and travel time by using a rotation pulse of a transmission (not shown) of the taxi vehicle 2, and operates “forwarding”, “ Dynamic information about actual and empty vehicles such as “running”, “passing” or “renting” is displayed. The taximeter 7 transmits the dynamic information as the vehicle information to the server 3 as a real / empty information signal.
[0020]
The vehicle speed sensor 8 is installed in the transmission of the taxi vehicle 2, and detects the vehicle speed pulse signal according to the vehicle speed and transmits the vehicle speed pulse signal to the server 3 through the cable 6 as vehicle information. It has come to be.
[0021]
The GPS receiver 9 receives a GPS radio wave from a GPS satellite (not shown) by a GPS antenna, demodulates the received GPS radio wave, acquires and detects a GPS signal, and uses the acquired GPS signal as vehicle information for the cable 6 Is transmitted to the server 3 via. The server 3 is configured to detect the current position of the taxi vehicle 2 based on information (signals) transmitted from the vehicle speed sensor 8 and the GPS receiver 9 or the like.
[0022]
The wiper device 10 can remove raindrops attached to the windshield or the like of the taxi vehicle 2 with a wiper, detects the operation of the wiper, generates a wiper signal, and transmits the vehicle via the cable 6. Information is transmitted to the server 3.
[0023]
The pulse generator 11 is connected to the server 3 via the backup signal line 6 c of the cable 6, generates a pulse signal as a management signal periodically, and transmits it through the backup signal line 6 c of the cable 6. The server 3 is configured to monitor the management signal sequentially.
[0024]
Although not shown, power is also supplied from the power supply control circuit 4 to the taximeter 7, the GPS receiver 9, and the wiper device 10.
[0025]
On the other hand, the server 3 is configured to be able to communicate with a management center (management means) 14 as a recognition means via a base station 12 and a mobile phone communication network 13 installed on the road when power is supplied. ing. The server 3 transmits various signals (actual / empty information signal, vehicle speed pulse signal, GPS signal, wiper signal) acquired from the taximeter 7, the vehicle speed sensor 8, the GPS receiver 9, the wiper device 10 and the like to the wireless communication device 5, The information is transmitted to the management center 14 via the base station 12 and the mobile phone communication network 13, and the various signals are stored as management information in a storage device (not shown).
[0026]
The business terminal 16 can be connected to the management center 14 via the Internet 15 through a terrestrial line such as a public line or a dedicated line, and management information stored in a storage device of the management center 14 is transferred via the Internet 15. The operation status of the taxi vehicle 2 is managed based on the reception.
[0027]
The operation of the above configuration will be described.
Normally, since various signals acquired by the server 3 are transmitted to the management center 14, the information is managed by the management center 14, and the taxi vehicle 2 is operated based on the information received by the business terminal 16. You can manage the situation and status.
[0028]
Here, for example, the cable 6 is disconnected due to an accident in the taxi vehicle 2, the driver of the taxi vehicle 2 intentionally disconnects the cable 6, or the cable 6 between the detection means 7 to 10 and the server 3 is pulled out. In this case, since various signals from the taximeter 7, the vehicle speed sensor 8, the GPS receiver 9, and the wiper device 10 are not transmitted to the server 3, the information is not transmitted to the management center 14 and the operator terminal 16 Can no longer be managed.
[0029]
In this case, the pulse signal generated by the pulse generator 11 is not transmitted to the server 3 substantially simultaneously. Since the server 3 sequentially monitors the pulse-shaped management signal, it detects that the management signal has been interrupted. When detecting that the management signal is interrupted, the server 3 notifies the management center 14 via the wireless communication device 5, the base station 12, and the mobile phone communication network 13. When the management center 14 detects the notification, the management center 14 recognizes that the harness 6 has been cut off, and the administrator can know the notification by notifying the operator terminal 16, for example.
[0030]
A backup signal line may be provided integrally with the power cable connecting the power control circuit 4 and the server 3. That is, when the power is cut off by cutting the power cable or the like, the power is not supplied to the server 3, but the server 3 instantly determines a power drop by a detection circuit (not shown) mounted on the server 3. The power supply line may be switched to the auxiliary power circuit 3a. As a result, power is supplied to the server 3, and the management center 14 can recognize that the power supply cable has been cut off, thereby notifying the management center 14 that the power supply cable has been cut off.
[0031]
According to such an embodiment, when the signal transmitted through the harness 6 is blocked, the management signal transmitted through the backup signal line 6c provided integrally with the harness 6 is also blocked. The management center 14 recognizes by notifying that it has been shut off. Therefore, even if the harness 6 is disconnected due to an accident, even if the harness 6 is intentionally interrupted by the driver of the taxi vehicle 2, the management center 14 can instantaneously detect the interruption of the transmission signal. As a result, the administrator can instantly find the interruption of the signal transmitted through the harness 6.
[0032]
Since the pulse generator 11 generates a periodic management signal in the form of a pulse, when the signal transmitted through the harness 6 is cut off, the server 3 notifies the management center 14 that the management signal is interrupted, and the management center 14 Can easily recognize that the management signal has changed.
[0033]
Since the backup signal line 6c is provided integrally with the vehicle speed sensor 8 for detecting the current position of the taxi vehicle 2 and the harness 6 connected to the server 3 from the GPS receiver 9, the current position of the taxi vehicle 2 is determined. It can be prevented as much as possible that it cannot be captured.
[0034]
Since the server 3 does not always transmit the management signal from the pulse generator 11 to the management center 14 and notifies only when the signal transmitted through the cable 6 is interrupted, the data communication cost can be reduced as much as possible. .
[0035]
(Other embodiments)
The pulse generator 11 may be provided as necessary. That is, for example, a portion corresponding to the pulse generator 11 may be connected to a ground having a potential of approximately 0 V, and the input terminal 6a of the server 3 connected to the backup signal line 6c may be pulled up, for example. In this case, when the backup signal line 6c is disconnected, the server 3 confirms that the signal transmitted through the backup signal line 6c is cut off because the input terminal substantially matches the power supply voltage of the server 3 by pull-up. Can be detected.
[0036]
As long as the backup signal line 6 c is connected between the pulse generator 11 and the server 3, the server 3 may be configured to always transmit the management signal of the backup signal line 6 c to the management center 14. In this case, when the transmission signal of the harness 6 is cut off, the management signal of the backup signal line 6c of the harness 6 is cut off from the state where it is transmitted to the management center 14, and the management center 14 has cut off the management signal. And the interruption of the transmission signal in the harness 6 can be detected instantaneously.
[0037]
In addition to the taxi operator that owns and manages the taxi vehicle 2 described above, the same applies to operators that own and manage business vehicles such as buses, trucks, cash transport vehicles, and cold cars. It can also be applied to temperature monitoring of a cargo compartment having a cold insulation function in a cold insulated vehicle. Specifically, when applied to a cold storage vehicle, a backup signal line 6c integrated with a harness 6 including a temperature sensor signal line for acquiring temperature information of a cargo compartment mounted on the cold storage vehicle and having a cold storage function. Is transmitted to the management center 14 when the signal transmitted through the harness 6 is interrupted.
[0038]
In the above description, the backup signal line 6c is integrally provided in the cable including the signal line. However, for example, a signal line for an operation signal indicating whether the ABS device has been operated, It may be provided integrally with a cable including an operation signal signal line indicating whether or not the bag device is operated and an operation signal signal line indicating whether or not the parking brake is operated. In this case, these signals are transmitted to the management center 14 when an accident occurs, and can be used as data for analyzing the accident after the occurrence of an accident in a business vehicle.
[0039]
In the above description, the embodiment in which the auxiliary power circuit 3a is mounted on the server 3a has been described. However, instead of the auxiliary power circuit 3a, a charging circuit (auxiliary battery) that can charge the power supplied from the power control circuit 4 is provided. When the server 3 detects that the power supply from the power supply control circuit 4 is cut off, the power supply is switched to the charging circuit, and this power supply cuts off the cable transmission signal to the management center 14 via the wireless communication device 5. It may be configured to notify that.
[0040]
In this case, in order to further simplify the configuration, only one capacitor may be provided instead of the above-described charging circuit. In this case, the capacitance value of the capacitor may be set so that the management center 14 can be notified for a certain period of time. Even if the power supply from the power supply control circuit 4 is cut off, the management center 14 can be notified that the cable transmission signal has been cut off.
[0041]
Even if the power switch provided in the wireless communication device 5 is turned off, the turned-off information is stored in the storage device in the server 3 and is turned off via the wireless communication device 5 when the power switch is turned on again. You may make it transmit the information.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an outline of a business vehicle management system showing an embodiment of the present invention.
1 is a commercial vehicle operation management system (business vehicle management system), 2 is a taxi vehicle (business vehicle), 3 is a server (transmission means), 6 is a harness (cable), 7 is a taxi meter (detection means), 8 Is a vehicle speed sensor (detection means), 9 is a GPS receiver (detection means), 10 is a wiper device (detection means), 11 is a pulse generator, and 14 is a management center (recognition means, management means).

Claims (5)

Detection means for detecting a state of business operations for a vehicle, the state of commercial vehicles the detection unit detects as the vehicle information, the server and the external information center a vehicle information by the server acquired to get through cable A transmission means for transmitting to the business vehicle,
The information center including management means for managing the state of the commercial vehicle based on receiving the vehicle information transmitted by the transmission means in an integrated manner ;
In the business vehicle management system consisting of
The business vehicle further includes:
Generating means for generating a management signal for managing the connection state of the cable;
A backup signal line provided integrally with the cable and for transmitting a management signal generated by the generating means to the server ;
The business vehicle management system characterized in that the server sequentially monitors the management signal generated by the generating means, and notifies the information center via the transmitting means when detecting that the management signal is interrupted . 2. The business vehicle management system according to claim 1, wherein the generation means generates a pulse-like periodic signal as the management signal. 3. The business vehicle management system according to claim 1, wherein the backup signal line is provided integrally with the cable including a signal line for detecting a current position of the business vehicle. 4. The business according to any one of claims 1 to 3, wherein the backup signal line is provided integrally with the cable including a signal line for acquiring taxi movement information as the business vehicle. Vehicle management system. The backup signal line is integrally provided in the cable including a temperature sensor signal line for acquiring temperature information of a cargo compartment having a cold insulation function mounted on a cold insulated vehicle as the commercial vehicle. The business vehicle management system according to any one of claims 1 to 3.

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