JPH04106699A - Vehicle operation state management device - Google Patents

Abstract

PURPOSE:To reduce the occurrence of traffic accidents by judging the violating state of a vehicle by comparing a specific vehicle operating rule with the operated state of the vehicle in a prescribed area and storing discriminated results, and then, when the stored results exceeds a prescribed value, forcibly deciding the operating state of the vehicle. CONSTITUTION:An operating rule establishing means 1 establishes an operating rule which must be observed by all vehicles in a prescribed area. An operated state monitoring means 2 monitors the operated state of a vehicle when the vehicle is operated in the prescribed area. On the other hand, a violating state storing means 3 discriminates the violating state of the monitored vehicle by comparing the operated state of the monitored vehicle with the operating rule and stores judged results. When the judged results stored in the means 3 exceeds a prescribed value, a forcibly operating means 4 is actuated and the operating state is forcibly decided irrespective of the will of the driver of the vehicle. Therefore, the occurrence of traffic accidents can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vehicle operation status management device that can efficiently manage vehicles for which uniform operation status management is impossible.

[Prior Art 1] Conventionally, many operation status management devices for managing the operation status of moving objects have been proposed.

Example (1 table of automated guided vehicles running horizontally and vertically within the factory)
A microcomputer installed in each automated guided vehicle operates while checking a predetermined trajectory, and inputs commands from a higher-level computer to avoid collisions with other automated guided vehicles.

In addition, trains on the tracks operate in accordance with instructions from the central command center according to predetermined timetables and distances from preceding trains ahead.

[Problem to be solved by the invention] Conventional operation status management devices (for mobile objects for which uniform operation regulations are determined in advance, such as automatic guided vehicles operating in a narrow factory or trains running on railroad tracks) It only manages the operation status.

On the other hand, many of the existing moving bodies (Table 1) have a large degree of freedom of operation, and each moving body exhibits various operating conditions. However, because of this large degree of freedom, there is a high risk of accidents occurring.

However, the previously proposed operation status management device (Yuga-
The purpose of this system is to control moving objects so that they comply with standard operating regulations, and it is to manage the operating conditions of moving objects that have a large degree of freedom, especially vehicles, and it is impossible to reduce traffic accidents. It is.

The present invention has been made in view of the above problems, and provides excellent vehicle operation status management that can reduce traffic accidents by effectively managing the operation status of vehicles that are allowed a large degree of freedom of operation. Its purpose is to provide equipment packaging.

[Means for Solving the Problems] In order to solve the above problems, the vehicle operation status management device of the present invention is configured as shown in the basic configuration diagram of Table 1 and Figure 1, which means that the vehicle should follow within a predetermined area. an operation rule regulation means for prescribing operation rules; an operation condition monitoring means for monitoring the operation condition of the vehicle when the vehicle operates within the predetermined area; Comparing the operation status with the operation rules prescribed by the operation rule regulation means,
a violation state storage means for determining whether the driving situation violates the operation rules and storing the determination result; and when the determination result stored in the violation state storage means exceeds a predetermined value, the vehicle The vehicle is characterized by having a forced operation means that determines the operation status of the vehicle regardless of the driver's intention.

[Function] The operation rule specifying means in the vehicle operation status management device of the present invention includes operation rules Ilk to be followed by vehicles within a predetermined area, rules specific to the predetermined area such as "stop at -", "speed limit", etc. It stipulates rules based on a predetermined area and its situation, such as operation according to traffic signals and operation according to railroad crossings.

Further, the operation status monitoring means monitors the operation status of the vehicle when the vehicle operates within the predetermined area. Here, monitoring (aspirations) is sufficient if it can at least judge whether or not the vehicle complies with the operating rules stipulated in the said operating rule regulating means.Moreover, in more detail, it is possible to monitor even the degree of violation of the operating rules. There may be.

On the other hand, the vehicle operation status monitored by the violation status storage means (operation status monitoring means) is compared with the operation regulations prescribed by the operation rule regulation means, and the violation status of the operation status with respect to the operation rules is determined. Remember the results.

The actual operating situation of a vehicle, which has a large degree of freedom, does not necessarily adhere to the operating rules prescribed by the operating rule specifying means. The system determines whether or not the traffic rules have been violated, and stores the results in a cumulative manner. For example, l'L is implemented as a violation state storage means (eg, an electric circuit that objectively converts and stores the violation state into numerical values, weighted according to the content of the violation and the degree of the violation).

Then, when the judgment result stored in the violation state storage means exceeds a predetermined value, the forced operation means is activated, and the operation status of the vehicle is forcibly determined regardless of the intention of the vehicle driver. .

The forced operation means is activated in this way when the judgment result stored in the violation state storage means exceeds a predetermined value. Therefore, the driver is usually able to operate the vehicle with a large degree of freedom. However, when the resulting operating conditions differ significantly from the operating rules, it is considered inappropriate to leave the operation of the vehicle to the driver's free will, and forced operation means are activated.

EXAMPLES Hereinafter, in order to explain the present invention more specifically, the present invention will be described in detail with reference to Examples.

[Embodiment] FIG. 2 is an explanatory diagram of the configuration of a system that employs a vehicle operation status management device that is an embodiment.

As shown in the figure, the vehicle operation status management device of this embodiment is a driving rule transmitting device installed in each predetermined area of a general public road R]
0 and the operation control device 50 mounted on each vehicle.

Note that the driving rule transmitting device o in FIG. 2 is a type that is linked to a traffic signal S installed near a crosswalk C.

FIG. 3 is a detailed electric circuit block diagram of the operation rule transmitting device]O. As shown in the figure, the operation rule transmitting device 10 includes a decoder] 2 and two oscillators, - an hour stop signal oscillator]
4 and a speed limit signal oscillator 16.

The decoder 12 generates two types of outputs depending on the operation signal of the traffic light S, and the current display state of the traffic light S is "red".
, "Yellow" or "Blue" is input, and in response to the input, either the temporary stop signal oscillator 14 or the speed limit signal oscillator 16 outputs an alternative drive signal. That is, when the display state of the traffic light S is "blue" or "yellow", the drive signal is output only to the (table speed limit signal oscillator) 6. Also, when the display state is "red", the drive signal is output to 1.
This outputs a drive signal only to the - time stop signal oscillator 14.

Note that the functions of the decoder 12 described above are merely an example, and higher functions may be added.

For example, a timer function is added to (Dai decoder) 2, and after a certain period of time has elapsed since the color changes to "yellow", the stop signal oscillator 14 is activated or the speed limit of the speed limit signal is gradually reduced to a slow speed. It may be.

Pause signal oscillator 14 (decoder above) This oscillator operates to generate a signal during a period in which a drive signal is input from 2, and modulates and transmits a specific signal "-time stop".

Further, the speed limit signal]6 is an oscillator that similarly operates only during the period when the drive signal is input from the decoder]2, and modulates /ml to the speed limit r50 and transmits it.

In this way, near the crosswalk C, a modulated signal "stop at -" or r50 K/
mJ is being transmitted.

The operation control device 50 (& As shown in the electric circuit block diagram of FIG. The modulated signal received by the circuit 50a is demodulated by the next stage demodulation circuit 50b, and further converted into a digital signal by the next A/D conversion circuit 50c.

In order to process the signals converted into digital signals in this manner, the operation control device 50 is equipped with an arithmetic and logic operation circuit centered on a microcomputer. That is, in addition to the various circuits described above, a CPU 50c that executes arithmetic reasoning operations
1, a ROM 50e that non-volatilely stores a control program executed by the CPU 50d, and a RAM 50f that stores temporal information. In addition, input port 50
g+; LA This is an interface circuit for outputting a signal from the A/D conversion circuit 50c to the CPU 50d at a predetermined timing. Further, when an operation stop signal is input from the CPU 50d which processes the control program as described later to the output port 50hLL, a fuel cut signal is output to the fuel amount control device 6o mounted on the vehicle. When this fuel cut signal is input to the fuel amount control device 60, the fuel amount control device 6o stops driving the fuel injection valve 62 that injects and supplies fuel, and the vehicle loses propulsion.

In addition, the input port 50g of the operation-side Pa device 5o is connected to various sensors necessary for grasping the current operation status of the vehicle.
Eight force signals from the speed meter 70, brake pedal sensor 72, and accelerator pedal sensor 74 are input, and the data is appropriately output to the CPtJ50d.

In the operation control device 5o configured as described above, R
A control program whose flowchart is shown in FIG. 5 is stored in the OM 50e. and CP LJ 50 d
(t) The processing of this control program starts at the same time as the ignition key of the vehicle is operated and the internal combustion engine is started.Hereinafter, the operation of the operation control device 5o will be explained according to the flowchart of FIG.

When the internal combustion engine of the vehicle is started, the CPU 50d executes normal initialization processing (step 100). Here, the initialization processing refers to processing such as resetting the violation point X to "O" and performing a memory check (described later).

Next, the A/D conversion circuit 50c is connected via the input port 50g.
Input data from and determine whether there are any operating regulations regarding the location where the vehicle is currently operating (
step]]0). Then, if it is determined that some kind of operation regulation exists at the current operation location, step 12
The process after 0 is executed, and if the process is other than that, the process returns to step 110 again.

When some operating regulations are input through the input port 50g, the input data contents are first decoded (step 120). Then, detection signals from various sensors such as the speed meter 70 are inputted, and the actual operating status of the vehicle is determined from the contents thereof (step 130).

In this way, once the operating regulations and actual operating conditions at the current operating location are understood, the next step is to determine the degree of violation of the operating conditions (
Step 140). Here, the violation degree is a numerical value calculated regarding the importance of the operation regulations and the degree of violation of the operation regulations, and the program is programmed so that the violation degree is calculated to be high for violations that are likely to lead to a major accident. There is. For example, if a modulated signal "stop at -" is ignored and the vehicle is operated at a considerable speed without applying the brakes, this will be a major violation. Further, when /mJ is transmitted as the modulation signal r50, and the current vehicle speed is less than 50/m, the violation point is rQJ.

When the calculation of the violation points is completed, the current violation points are added to the contents of the violation points X assigned to a predetermined area of the RAM 50f (step 150), and the violation points X are accumulated. Then, it is determined whether the content of the accumulated violation points X exceeds the maximum value X max stored in advance in the ROM 50 e (step 160).

When the violation point x is still a small value, the processing of steps 110 to 160 is not repeated, and the violation point X is cumulatively added each time the actual driving state violates the driving rule. When the violation point X exceeds the maximum value X max, the CPU 50d issues an operation stop signal to the output port 5oh (step 170) and sets a timer (step 80). As a result, the fuel injection control device 60 stops driving the fuel injection valve 62.
The vehicle will lose propulsion and come to a stop.

When the vehicle is forced to stop operating in response to the increase in the number of violation points This state is maintained until a certain period of time has passed.

Then, after a certain period of time has passed, the process proceeds to step 100.
Then, the violation point X and the timer are returned to their initial states, and the same processing from step 110 to step 190 is repeated.

The vehicle operation status management device of this embodiment configured as described above has the following effects.

Vehicles are moving objects that have a large degree of freedom, and uniform operation management is impossible. For example, in order to avoid accidents, it may be necessary to temporarily exceed the speed limit.

However, it is generally true that maintaining operating conditions in accordance with operating rules is essential to reducing traffic accidents.

Therefore, the vehicle operation status management device of this embodiment has the following characteristics:
This concept will be introduced to manage vehicle operations while taking into account the importance and severity of violations. Therefore, it is possible to manage the operation of vehicles by allowing them to operate freely, and by imposing sanctions on violations that lead to accidents.

Further, by arranging the vehicle operation status management device (or operation rule issuing device 1o) of this embodiment at an appropriate location, the device configuration can be completed by simply installing the operation control device 50 in each vehicle.

Furthermore, vehicles are generally equipped with antennas.
A reception function for AM or FM modulated waves is already installed.

Therefore, the vehicle operation status management device of this embodiment can be manufactured at low cost by using an existing electric circuit, and can be easily installed in already manufactured vehicles.

It should be noted that the vehicle operation status management device of the present invention is not limited to the configuration of the above embodiment, but can be realized in various ways.

For example, the driving rule transmitting device 10 in this embodiment may be omitted and replaced by a visual sensor installed in the vehicle that reads speed limit signs, stop signs, etc. already installed on public roads. With such a configuration, it is possible to construct a vehicle operation status management device by improving only the vehicle side.

Further, in the above embodiment, a timer forces the operation of the vehicle to stop until a certain period of time has elapsed.

In order to strengthen the meaning of this sanction, the period of forced suspension of operation may be gradually increased according to the number of forced stops. In addition, the same effect (maximum value X depending on the number of forced stops)
It can also be obtained by gradually decreasing max.

Conversely, if the next operation violation does not occur even after a certain period of time has passed after violation points A control program that resets X to "0" may also be executed.

Furthermore, in the above example, the vehicle is forcibly stopped by executing a fuel cut, but measures such as activating the brake system to apply braking force and setting an upper limit on the opening degree of the accelerator are also adopted. You may.

In addition, when making it impossible for a vehicle to operate in this way or restricting its speed, controls such as turning on parking lights, emergency lights, etc. are carried out at the same time in order to notify surrounding vehicles of this fact. You can.

[Effects of the Invention] As described in detail with reference to the embodiments, the vehicle operation status management device of the present invention compares the operation rules defined in a predetermined area with the operation status of the vehicle to determine a violation state, and The judgment result is stored, and when the judgment result exceeds a predetermined value, the operating status of the vehicle is forcibly determined.

Therefore, the large degree of freedom of operation that characterizes vehicles can be respected to the fullest, and free operation can be allowed under normal conditions. Then, only when it is recognized that there are many violations of driving rules that could lead to accidents within that degree of freedom, the operating status of vehicles is forcibly managed. As a result, traffic accidents can be reduced by effectively managing vehicle operating conditions.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the basic configuration of the present invention, Fig. 2 is an explanatory diagram of the arrangement of a vehicle operation status management device according to an embodiment, Fig. 3 is an electric circuit block diagram of the operation rule transmitting device, and Fig. 4 is FIG. 5, which is an electric circuit block diagram of the operation control device, shows a flowchart of a control program processed in the operation control device. ]0... Operation rule transmitting device ]2... Decoder 14
...- Time stop signal oscillator 16... Speed limit signal oscillator 50... Operation control device 50a... Receiving circuit 50
b... Demodulation circuit 50c... A/D conversion circuit 5
0d---CPLJ 50e---ROM5
0f...RAM

Claims (1)

[Scope of Claims] 1. Operation rule regulation means for defining operation rules to be followed by vehicles within a predetermined area; and operation status monitoring means for monitoring the operation status of the vehicle when the vehicle operates within the predetermined area. and comparing the operating status of the vehicle monitored by the operating status monitoring means with an operating rule prescribed by the operating rule specifying means, and determining whether the operating status violates the operating rule,
a violation state storage means for storing the judgment result; and when the judgment result stored in the violation state storage means exceeds a predetermined value, the operating status of the vehicle is determined regardless of the intention of the driver of the vehicle. A vehicle operation status management device comprising: a forced operation means;