JP2003067886A - Monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring device which can reset an exact parameter value when the parameter value is changed at timing having possibility that the parameter is changed. SOLUTION: A central control unit existing in a remote place sets the parameter value. The monitoring device is provided with a parameter setting part which can directly change the parameter value that is set and a control part detecting possibility that the parameter value which is set in the parameter setting part is changed and informing the central control unit of the setting situation of the parameter setting part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device and a monitoring system, for example, applied to a device or system for monitoring the traveling speed of a vehicle traveling on a road and photographing the vehicle traveling at a predetermined speed or more. It is suitable.

[0002]

2. Description of the Related Art Conventionally, this type of monitoring device is installed at an arbitrary point on a road and is centrally managed by a central control device existing in a remote place. Each of these monitoring devices monitors the traveling speed of a vehicle traveling at an installed point, and when a vehicle traveling at a predetermined speed or higher is found, the vehicle traveling at the predetermined speed or higher is monitored under a predetermined photographing condition. The image of the vehicle thus taken is transmitted to the central control unit.

The central control unit sets parameter values for photographing conditions suitable for the location where each monitoring device is installed in the monitoring device via the public line. The central control device is adapted to receive a clear image from the monitoring device because the monitoring device images the vehicle with appropriate parameter values. As a result, the central control device monitors the vehicle traveling at a predetermined speed or higher based on the clear image received from the monitoring device.

By the way, the monitoring device sets the parameter values such as the exposure time and the shooting timing of the camera set by the central control device to the climatic conditions in the time zone in order to shoot the images for the purpose of temporary investigation and test. At the same time, it can be changed freely on the spot.

[0005]

However, when the temporarily changed parameter value is left without being returned to the parameter value before the change, the monitoring device cannot change the daytime, nighttime change, climatic conditions, or the like. There was a problem that it was not possible to quickly follow the change and a clear captured image could not be obtained.

Further, the monitoring device may change the parameter values due to mischief by a third party other than the persons concerned and may cause the same problem.

The present invention has been made to solve the above-mentioned problems, and when the parameter value is changed at a timing when the parameter value may be changed, the correct parameter value is re-set. The purpose is to obtain a monitoring device that can be set.

[0008]

SUMMARY OF THE INVENTION A monitoring device according to the present invention includes an information acquisition unit for acquiring surrounding information and an information acquisition unit based on a parameter value set by a central control device existing in a remote place. When the local control unit recognizes that the parameter value has been changed by the parameter setting unit, it has a local control unit for controlling and a parameter setting unit for changing the parameter value set by the central control unit. Is recognized and / or the currently set parameter value is notified to the central control unit.

Further, the monitoring device according to the present invention is provided with a door which can be opened and closed, and which detects the opening and closing of the door provided in the control box and the control box which stores the parameter setting unit inside the door. A sensor may be provided, and the local control unit may recognize the possibility that the parameter value has been changed based on the detection result from the sensor.

Further, in the monitoring apparatus according to the present invention, the parameter setting section has a change operation section for changing the set parameter value, and the local control section detects that the change operation section is operated. Thus, the possibility that the parameter value has been changed may be recognized.

The monitoring device according to the present invention further comprises a first storage means for storing the parameter value and a second storage means for storing the parameter value at the time set by the central controller as a backup parameter value. When the local control unit recognizes that the parameter value has been changed by the parameter setting unit, the local control unit notifies the central control unit of the backup parameter value stored in the second storage unit. May be.

Further, in the monitoring device according to the present invention, the second storage means may be changed only from the central control device.

Further, in the monitoring device according to the present invention, when the central control device determines that the parameter value for backup is normal, the local control unit sets the parameter value stored in the first storage means to the first value. The backup parameter values stored in the second storage unit may be reset.

Further, the monitoring device according to the present invention includes an information acquisition unit for acquiring information about the surroundings, and first and second storages for respectively storing parameter values set by the central control device existing in a remote place. A unit, a parameter setting unit that changes a parameter value stored in the first storage unit, and
And a local control unit that controls the information acquisition unit based on the parameter value stored in the storage unit of the local storage unit. When the local control unit recognizes the possibility that the parameter value is changed by the parameter setting unit, The parameter value stored in the storage means is reset to the backup parameter value stored in the second storage means.

Further, the monitoring device according to the present invention is provided with a door that can be opened and closed, and a control box that stores a parameter setting unit inside the door and detects whether the door provided in the control box is open or closed. A sensor may be provided, and the local control unit may recognize the possibility that the parameter value has been changed based on the detection result from the sensor.

Further, the monitoring apparatus according to the present invention has a change operation section for changing the set parameter value by the parameter setting section, and the local control section detects that the change operation section is operated. The possibility that the parameter value has been changed may be recognized.

Further, in the monitoring apparatus according to the present invention, the local control unit compares the parameter value stored in the first storage unit with the parameter value stored in the second storage unit, When it is detected that the values are different, the parameter value stored in the first storage unit may be reset to the backup parameter value stored in the second storage unit.

Further, in the monitoring device according to the present invention, the information acquisition unit may acquire the vehicle speed data and the image data of the vehicle, and the monitoring device may be a vehicle speed monitoring device.

Further, in the monitoring system according to the present invention, the monitoring device includes an information acquisition unit for acquiring information about the surroundings and an information acquisition unit based on a parameter value set by a central control device existing in a remote place. A local control unit for controlling and a parameter setting unit for changing a parameter value set by the central control device are provided, and the local control unit is
When the parameter setting unit recognizes the possibility that the parameter value has been changed, the central control unit is notified of the fact that the parameter value has been changed and / or the currently set parameter value is notified. Compares the first and second parameter values with the parameter value notified by the monitoring device as the first parameter value and the parameter value preset in the monitoring device as the second parameter value. If they are different,
The second parameter value is reset as the parameter value of the monitoring device.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. FIG. 1 shows a monitoring system according to the first embodiment, in which a central controller 8 monitors a traveling speed of a vehicle 6 by using a monitoring device 5 installed at an arbitrary position on a road. In such a monitoring system, a plurality of monitoring devices 5 are connected to a central control device 8 via a line 7 such as a public line or a private line, and the monitoring device 5 is connected to a vehicle via a control cable 4. A speed measuring device 1 for monitoring the speed, a camera 2 for photographing the vehicle, and an illuminator 3 for illuminating the vehicle when the camera 2 photographs are provided.

In this monitoring system, the central controller 8 sets parameter values for controlling the speed measuring device 1, the camera 2 and the illuminator 3 to the monitoring device 5, and the monitoring device 5 sets the parameter values to the parameter values. By controlling each part based on this and photographing the vehicle, it is possible to obtain an image of the vehicle photographed under desired photographing conditions while in a remote place.

Specifically, the monitoring system is constructed as shown in FIG.

That is, the monitoring device 5 includes the speed controller 1, the camera 2 and the local controller 22 via the control cable 4.
The illuminator 3 is connected, and the data transmitting / receiving unit 25 for transmitting / receiving data such as parameter values, and the parameter setting unit 26 for holding the parameter values received via the data transmitting / receiving unit 25 are connected. Has been done.

Incidentally, this parameter value is a speed reference value for the speed measuring instrument 1 to detect a vehicle traveling at a predetermined speed or higher, an illumination reference value for the illuminator 3 to illuminate on the basis of external brightness, and an external reference value. It is composed of condition values for beautifully photographing a traveling vehicle, such as an exposure variable value that determines the exposure time of the camera 2 based on the brightness and the brightness of the illuminator 3.

The operation of the monitoring system will be described below.
First, when measuring the traveling speed of a vehicle traveling in a lane, the local control unit 22 of the monitoring device 5 controls the speed measuring device 1 to irradiate the electromagnetic wave, and based on the electromagnetic wave reflected by the vehicle. Monitor driving speed.

Here, the speed measuring instrument 1 irradiates an electromagnetic wave under the control of the local control section 22 and receives the reflected and returned electromagnetic wave. Subsequently, the speed measuring device 1 converts the received electromagnetic wave into a video signal, and the video signal obtained by the conversion is transmitted to the local control unit 22 via the control cable 4.
Send to. Among the electromagnetic waves emitted at this time, the electromagnetic waves emitted to the traveling vehicle undergo a shift of the Doppler frequency according to the speed of the traveling vehicle.

Next, the local control unit 22 measures the speed of the vehicle irradiated with the electromagnetic wave based on the shift amount of the Doppler frequency in the received video signal. When the local control unit 22 detects that the measured speed exceeds the speed reference value of the parameter value, the traveling vehicle 6
The time required for the traveling vehicle 6 to reach the shooting position is calculated based on the speed measured by the speed measuring device 1 so that the number plate 19 of FIG.

Subsequently, the local control unit 22 determines the shutter release timing of the camera 2 based on the calculated arrival time and the exposure time described later, and transmits the image capturing command to the camera 2 at the determined timing.

Further, the local control section 22 determines the exposure time and the presence / absence of illumination according to the value obtained from the illuminometer (not shown) based on the parameter value set in the parameter setting section 26, and these photographing conditions are set. Is transmitted to the camera 2 and the illuminator 3. Incidentally, the local control unit 22 is configured to transmit the photographing condition required when the value obtained from the illuminance meter changes or at every predetermined time.

Next, the camera 2 has a local control unit 22.
When an image pickup command is received from the illuminator 3, a light emission command is issued to the illuminator 3 based on the received image pickup condition, the shutter is released, and the traveling vehicle 6 in the first lane is photographed. It is transmitted to the local control unit 22.

Subsequently, the local control unit 22 transmits the received image data to the transmission / reception unit 9 of the central control unit 8 via the data transmission / reception unit 25.

On the other hand, the central control unit 8 is designed to manage the vehicle traveling at a predetermined speed or higher using the image data transmitted from the monitoring units 5 installed in various places.

That is, the central controller 1 of the central controller 8
0 stores the image data received by the transmission / reception unit 9 in the storage unit 13 as a database, and displays the image data currently being received on the display unit 11 in the order of reception.

Further, when the image data desired by the user is designated through the operation unit 12, the central control unit 10 reads out the designated image data from the storage unit 13 and displays a photographed image of the read out image data. It is displayed on the display unit 11.

When the central control unit 10 receives a print command from the operation unit 12 when the image is displayed on the display unit 11, the image displayed on the display unit 11 is displayed based on the print command. An image as shown in FIG. 3 is printed on the photographic paper 20 and printed out from the printer 14.

Incidentally, as shown in FIG. 3, in the photographed image 15 printed on the photographic printing paper 20, the driver 18 riding in the traveling vehicle 17, the license plate 19 of the vehicle, and the date and time when the photographing was performed. A superimpose pose 16 indicating the traveling speed of the captured vehicle is displayed.

Further, the central control unit 10 is adapted to set the above-mentioned parameter value in the parameter setting unit 26 of the monitoring device 5. That is, the central control unit 10
When a shooting condition such as an exposure time required for shooting by the camera 2 is designated via the operation unit 11, a parameter value corresponding to the designated shooting condition is generated, and the generated parameter value is transmitted / received by the transmitting / receiving unit 9 And the parameter setting unit 26 via the data transmission / reception unit 25.

Thus, the monitoring device 5 comprises the central controller 8
By photographing the traveling vehicle based on the parameter value set by, the photographed image photographed under the desired photographing condition can be transmitted to the central control device 8.

In addition to such a configuration, the monitoring device 5 stores a parameter value received from the central control device 8 and a backup memory 23 for holding the stored parameter value for backup of the parameter setting unit 26, and an opening / closing device. A box 30 having a free door 31 and a sensor 28 for detecting opening / closing of the door are provided. Inside the box 30, the local control unit 22, the data transmitting / receiving unit 25, the parameter setting unit 26, and the backup memory 23 are stored.

Further, the parameter setting unit 26 stores a parameter value set by the central control unit 8 in the memory 26B, and a parameter value stored in the memory 26B which can be freely changed by the user. A change operation unit 26A is provided.

The parameter value changing operation section 26A comprises a display section for displaying the parameter values stored in the memory 26B, operation buttons and operation knobs for changing the parameter values, and the user operates the operation buttons. And the parameter values changed by operating the operation knob
B is designed to be memorable.

Further, the local control section 22 not only stores the parameter value transmitted from the central control unit 8 in the memory 26B which is the first storage means, but also backups the parameter value which is the second storage means. It is adapted to be stored in the memory 23.

Then, the local control unit 22 transfers data between the backup memory 23 and the parameter setting unit 26 when setting the parameter value stored in the backup memory 23 in the parameter setting unit 26. It is done like this.

As a result, even if the parameter value set in the parameter setting section 26 is changed by the parameter value changing operation section 26A, the monitoring apparatus 5 uses the parameter value stored in the backup memory 23 to control the central controller 8 It is designed to be able to hold the parameter value when sent from.

Further, the monitoring device 5 is designed to be able to immediately restore using the parameter value stored in the backup memory 23 even if the parameter value set in the parameter setting unit 26 disappears due to a power failure or the like. There is.

Further, the sensor 28 is a mechanical switch, and notifies the local control section 22 of the detection result each time the opening / closing of the door 31 is detected.
Note that the sensor 28 is not limited to a mechanical switch, and any switch that can detect opening / closing of the door 31, such as an electrical, magnetic, or optical switch, may be used.

That is, when the sensor 28 notifies the local control unit 22 that the door has been opened (hereinafter, this notification is referred to as an opening operation notification), the parameter value of the opening operation notification may be changed. By reading the monitoring program from a ROM (Read Only Memory) (not shown) and executing the parameter value monitoring procedure RT1 shown in FIG. 4 based on the read monitoring program,
The parameter value set by the parameter setting unit 26 is maintained at the parameter value at the time of receiving from the central controller 8.

First of all, the local control unit 22 uses the sensor 28.
Parameter value monitoring procedure RT
After starting 1 (step SP1), the sensor 28 waits for a notification that the door is closed (hereinafter referred to as a closing operation notification) (step SP2). If the closing operation notification is received, the backup is performed. The parameter value stored in the memory 23 is read, and the read parameter value is inquired (notified) to the central control unit 8 via the data transmitting / receiving unit 25 (step SP3).

Further, the local control unit 22 includes a sensor 28.
From the closing operation notification (step SP2), and if the closing operation notification is not given for a predetermined time or longer, it is determined that the door 31 is still in the opened state, and the backup memory 23 is stored as described above. Inquiry (notification) of the stored parameter value to the central controller 8 (step SP)
3).

In practice, the local control unit 22 uses the sensor 2
When the opening operation notification is given from 8 as a trigger, the elapsed time is counted and it is determined whether or not the elapsed time exceeds a predetermined time set in advance (step SP
By 4), it is determined whether the door 31 is still open.

On the other hand, the central controller 10 of the central controller 8
Compares the parameter value received from the monitoring device 5 with the parameter value held by itself corresponding to the monitoring device 5, and if it determines that these parameter values are different based on the comparison result, The retained parameter value is transmitted again to the monitoring device 5.

Incidentally, when it is determined that the parameter values are different as described above, this means that even if the parameter value is transmitted from the central control unit 8 to the monitoring device 5, the parameter stored in the backup memory 23 of the monitoring device 5 is stored. The parameter was not updated to the parameter value for some reason, the parameter value set in the parameter setting unit 26 of the monitoring device 5 was changed, and the parameter stored in the backup memory 23 due to the change for some reason. Means that the value has changed.

Then, when displaying the image of the image data received via the transmitting / receiving unit 9 on the display unit 11, the central control unit 10 displays the comment that the door is open on the image as superimpose. To do. Incidentally, when the image displayed on the display unit 11 is printed, the central control unit 10 can print such comments together.

Further, the central controller 10 of the central controller 8
Is the same response signal which means that the parameter value stored in the backup memory 23 is the same as the parameter value transmitted from the central controller 8 when it is determined that the parameter values are the same based on the comparison result. Is transmitted to the monitoring device 5.

Next, the local control unit 22 of the monitoring device 5
Waits for a new parameter value (step SP
5) When a new parameter value is received from the central controller 8, the received parameter value is reset in the parameter setting unit 26, and the received parameter value is stored in the backup memory 23 again (step SP6), and thereafter, the parameter value monitoring procedure RT1 ends (step SP7).

On the other hand, when the local control unit 22 receives the same response signal from the central control unit 8, it reads the parameter value stored in the backup memory 23,
The read parameter value is set again in the parameter setting unit 26 (step SP8), and then the parameter value monitoring procedure RT1 is ended (step SP7). As a result, even if the parameter value set in the parameter setting unit 26 has been changed, it is reset to the parameter value at the time of receiving from the central controller 8.

Thus, the monitoring device 5 uses the opening and closing of the door 31 provided in the box 30 storing the parameter setting unit 26 as a trigger for resetting the parameter value, so that the door 31 is opened and the parameter setting unit is opened. The parameter value can be reset at the timing when the parameter value of 26 may have been changed.

Further, the monitoring device 5 inquires of the central control device 8 about the parameter value stored in the backup memory 23, so that the parameter value stored in the backup memory 23 is inferred from the central control device 8 for some reason. Even if a situation different from the parameter value received from the CPU occurs, the parameter value is updated and the backup memory 23 retains the parameter value at the time of reception from the central control unit 8 (that is, an accurate parameter value). be able to.

Therefore, the monitoring device 5 monitors not only the parameter value set in the parameter setting unit 26 but also the backup parameter value of the parameter value set in the parameter setting unit 26 so as to be an accurate value. Therefore, it is possible to reliably hold accurate parameter values.

In the above embodiment, the sensor 28 is used.
The case has been described in which the opening operation notification from is recognized as a possibility that the parameter value has been changed and is used as a trigger to start the parameter value monitoring procedure RT1, but in the present embodiment,
It may be recognized that the parameter value has been changed by pressing the operation button for changing the parameter value provided in the parameter setting unit 26. In this case, regardless of whether or not the parameter value of the parameter setting unit 26 has been completely changed, the trigger is only that the operation button for changing the parameter value provided in the parameter setting unit 26 is pressed.

That is, the sensor 28 provided in the local control unit 22 becomes unnecessary, and the local control unit 22 is not required.
Replaces the opening operation notification from the sensor 28 and executes the monitoring program based on the operation signal from the parameter setting unit 26 to start the parameter value monitoring means.

Further, in the above-mentioned embodiment, the case of recognizing the opening operation notification as a possibility that the parameter value has been changed has been described, but in the present embodiment, the closing operation notification may have the parameter value changed. You may recognize it as sex.

Further, in the above-described embodiment, when the local control unit 22 receives the same response signal from the central control unit 8, the local control unit 22 resets the parameter value stored in the backup memory 23 in the parameter setting unit 26 ( Although step SP8) has been described, in the present embodiment, the parameter values stored in the backup memory 23 are compared with the parameter values set in the parameter setting unit 26, and these parameters are calculated based on the comparison result. Only when it is detected that the values are different, backup memory 2
The parameter value stored in 3 is used as the parameter setting unit 2
It may be reset to 6.

Further, in the above-mentioned embodiment, the case where the speed measuring device 1 for acquiring the speed of the vehicle as speed data and the camera 2 for acquiring the image of the vehicle as the image data are used as the information acquiring unit has been described. In the present embodiment, a sound collector that acquires noise when the vehicle travels as sound collection data, a temperature sensor that acquires heat generation temperature of an object as data, and ambient brightness as illuminance data. Anything such as an illuminance meter that can acquire surrounding information as data may be used.

Further, in the above-described embodiment, the case where the parameter value currently set is notified to the central control unit when the possibility that the parameter value has been changed is recognized has been described. Then, the central controller may be notified that the possibility that the parameter value has been changed is recognized, and the parameter value may be received again from the central controller.

As described above, according to this embodiment, when the local control unit recognizes the possibility that the parameter value is changed by the parameter setting unit, the possibility that the parameter value is changed is recognized. And / or by notifying the central controller of the currently set parameter value, the parameter value can be reset at the timing when the parameter value may have been changed.

Further, according to the above-described present embodiment, by recognizing the possibility that the parameter value has been changed based on the detection result from the sensor that detects the opening / closing of the door, the door can be opened by any user. The parameter value can be reset at the timing of opening and closing.

Further, according to the above-described embodiment, by recognizing the possibility that the parameter value has been changed based on the operation of the change operation section, the button of the change operation section can be selected by any user. It is possible to reset the parameter value at the timing when the etc. are operated.

Further, according to the present embodiment, when the parameter setting unit recognizes the possibility that the parameter value has been changed, the backup parameter value stored in the second storage means is set to the central control unit. By sending the notification to the central controller, it is possible to inquire the central controller by using the most reliable parameter value on the monitoring device side, and it is possible to surely hold the accurate parameter value in the monitoring device.

Further, according to the present embodiment, the parameter value stored in the second storage means can be changed only by the central control unit, so that the central control unit can control the monitoring unit. The parameter value at the time of transmission can be retained.

Further, according to the present embodiment, when the central control unit determines that the backup parameter value is normal, the parameter value stored in the first storage means is set to the second storage means. By resetting the parameter value for backup stored in, the parameter value stored in the first storage means only by the parameter value on the monitoring device side without receiving the parameter value from the central control device again. Can be reset to the exact parameter values.

Further, according to the above-described present embodiment, the monitoring device can be used as a vehicle speed monitoring device to reliably find a vehicle traveling on a public road at a speed higher than the speed limit.

Embodiment 2. In the monitoring device shown in the second embodiment, in the monitoring device shown in FIG. 2 described above in the first embodiment, when the local control unit 22 receives the door opening operation notification from the sensor 28, the parameters stored in the backup memory 23. Without asking the central controller 8 for the value
It has the same configuration except that the parameter value is reset to the parameter setting unit 26 as it is.

That is, the local control unit 2 of the monitoring device 5
2 receives the door opening operation notification from the sensor 28, reads the monitoring program from the ROM (not shown), and executes the parameter value monitoring procedure RT2 shown in FIG. 5 based on the read program and sets the parameter. The parameter value set in the section 26 is maintained at the parameter value at the time of receiving from the central control unit 8.

First, the local control section 22 starts the parameter value monitoring procedure RT2 (step SP11), and then
Wait for the closing operation notification from the sensor 28 (step SP1
2) When the closing operation notification is received, the parameter value stored in the backup memory 23 is read (step SP13).

Further, the local control unit 22 uses the sensor 28.
From the door 31 (step SP12). If the closing operation notification is not given for a predetermined time or longer, the door 31
Is determined to be still open, and the parameter value stored in the backup memory 23 is read as described above (step SP13).

Incidentally, similarly to the first embodiment, the local control unit 22 counts the elapsed time triggered by the notification of the opening operation from the sensor 28, and the elapsed time is preset. By determining whether or not the predetermined time is exceeded (step SP14), it is determined whether or not the door 31 remains open.

Subsequently, the local control unit 22 determines whether the parameter value read from the backup memory 23 is the same as the parameter value set in the parameter setting unit 26 (step SP15). ,
This means that the parameter value of the parameter setting unit 23 has been changed by the person who opened the door, and the parameter value stored in the backup memory 23 is reset in the parameter setting unit 23 (step SP16). After resetting, the parameter value monitoring procedure RT2 is ended (step SP17).

On the other hand, the local control unit 22 uses the parameter values from the backup memory 23 and the parameter setting unit 2
If it is determined that the parameter values of 6 are the same,
The parameter value monitoring procedure RT2 is ended (step SP
17).

Thus, the monitoring device 5 sets the parameter value read from the backup memory 23 in the parameter setting portion 26, so that the parameter setting portion 2 can be set without referring to the central control device 8 for the parameter value.
An accurate parameter value can be set to 6.

In the above-described embodiment, the parameter value of the backup memory 23 is set in the parameter setting unit 26 when the parameter value from the backup memory 23 is different from the parameter value of the parameter setting unit 26. As described above, in the present embodiment, the backup memory 2 is received when the local control unit 22 receives the closing operation notification from the sensor 28 or when the local control unit 22 receives the opening operation notification from the sensor 28 and a predetermined time elapses.
The parameter value of 3 may be set in the parameter setting unit 26.

Further, in the above-mentioned embodiment, the case where the parameter value stored in the backup memory 23 is set in the parameter setting unit 26 after the local control unit 22 receives the opening operation notice has been described. In the embodiment, the parameter value stored in the backup memory 23 may be set in the parameter setting unit 26 every predetermined time.

As described above, according to the present embodiment, when the parameter setting unit recognizes the possibility that the parameter value has been changed, the parameter value stored in the first storage unit is stored in the second storage unit. By resetting the parameter value for backup stored in, the parameter value can be reset only at the monitoring device side at the timing when the parameter value may have been changed.

Further, according to the above-described present embodiment, by recognizing the possibility that the parameter value has been changed based on the detection result from the sensor that detects the opening / closing of the door, only the monitoring device side can arbitrarily determine. The parameter value can be reset when the user opens and closes the door.

Further, according to the present embodiment described above, by recognizing the possibility that the parameter value has been changed on the basis of the operation of the change operation section, only the monitoring device side allows an arbitrary user. Thus, the parameter value can be reset at the timing when the button or the like of the change operation unit is operated.

Further, according to this embodiment, the parameter value stored in the first storage unit is compared with the parameter value stored in the second storage unit, and these parameter values are different. When it is detected, the parameter value stored in the first storage means is reset to the backup parameter value stored in the second storage means, thereby storing it in the first storage means. Only when the parameter value that has been changed has been changed, the parameter value can be reset.

Third Embodiment FIG. 6 shows a monitoring device according to the third embodiment, and in the monitoring device shown in FIG. 2 described above in the first or second embodiment, a backup memory 23 for storing the parameter value transmitted from the central control device 8 is stored. It has the same structure except that it is omitted.

That is, the local control unit 2 of the monitoring device 5
When the door open notification is received from the sensor 28, the parameter reading unit 2 reads the monitoring program from the ROM (not shown) and executes the parameter value monitoring procedure RT3 shown in FIG. 7 based on the read program and the parameter setting unit. The parameter value set in 26 is set to the central controller 8
It is designed to maintain the parameter values at the time of receiving from.

First, the local control unit 22 uses the sensor 28.
Parameter value monitoring procedure RT
3 is started (step SP21), a door closing operation notification is awaited from the sensor 28 (step SP22), and when the closing operation notification is received, the parameter value set in the parameter setting unit 26 is centrally controlled. The device 8 is inquired (step SP23).

Further, the local control unit 22 uses the sensor 28.
To wait for the closing operation notification from step SP22, and when the closing operation notification is not given for a predetermined time or more, the central controller 8 is inquired about the parameter value set in the parameter setting unit 26 as described above ( Step SP2
3).

Incidentally, similarly to the first embodiment, the local control unit 22 counts the elapsed time triggered by the notification of the opening operation from the sensor 28, and the elapsed time is preset. By determining whether or not the predetermined time is exceeded (step SP24), it is determined whether or not the door 31 remains open.

On the other hand, the central controller 10 of the central controller 8
When comparing the parameter value received from the monitoring device 5 with the parameter value held by itself corresponding to the monitoring device 5 and judging that these parameter values are different based on the comparison result, Is the parameter setting unit 2
6 means that the parameter value of 6 may be changed, and the parameter value held by itself is transmitted again to the monitoring device 5.

The central control unit 10 displays the parameter value received from the monitoring device 5 on the display unit 11, thereby confirming the correctness of the parameter with respect to the user on the central control unit 8 side, and operating the user. Alternatively, the parameter value may be directly transmitted to the monitoring device 5.

Next, the local control unit 22 of the monitoring device 5
Waits for a new parameter value (step SP
25) If a new parameter value is received from the central controller 8, the received parameter value is reset in the parameter setting unit 26 (step SP26), and after the reset, the parameter value monitoring procedure RT3 is ended. Yes (step SP27).

Further, the local control unit 22 is not given a new parameter value for a predetermined time or longer (step SP2).
If it is determined to be 8), the parameter value monitoring procedure RT3
Is completed (step SP27).

Incidentally, the local control unit 22 triggers the inquiry of the parameter value to the central control unit 8, and
The elapsed time is counted and it is determined whether or not the elapsed time exceeds a preset predetermined time (step S
By doing so, it is confirmed that the parameter value set in the parameter setting unit 26 on the central control unit 8 side has been determined to be unchanged.

Thus, the monitoring device 5 inquires the central controller 8 of the parameter value set in the parameter setting unit 26, so that the parameter setting unit 26 has a simple structure.
You can keep accurate parameter values.

In the above-described embodiment, the elapsed time is counted using the local control unit 22 as a trigger to inquire the central controller 8 for the parameter value.
The case where the parameter value monitoring procedure is terminated when the elapsed time has passed a preset predetermined time has been described, but the present embodiment is not limited to this, and the parameter setting unit 2 is not limited thereto.
The parameter value monitoring procedure may be terminated when a signal is received from the central control device 8 in which the parameter value of 6 and the parameter value held in the central control device 8 are the same. This eliminates the need for the monitoring device 5 to wait an extra time to complete the parameter value monitoring procedure.

[0099]

As described above, according to the present invention, an accurate parameter value is reset when the parameter value of the parameter setting section is changed at the timing when the parameter value may be changed. can do.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a mobile body speed monitoring system according to the present invention.

FIG. 2 is a configuration diagram showing a monitoring device according to the first and second embodiments of the present invention.

FIG. 3 is a schematic diagram showing a print output of the present invention.

FIG. 4 is a flowchart showing a parameter value monitoring procedure according to the first embodiment.

FIG. 5 is a flowchart showing a parameter value monitoring procedure according to the second embodiment.

FIG. 6 is a configuration diagram showing a monitoring device according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing a parameter value monitoring procedure according to the third embodiment.

[Explanation of symbols]

1 speed measuring device, 2 camera, 3 illuminator, 4 control cable, 5 monitoring device, 6 traveling vehicle, 7 public line,
8 central control unit, 9 transmitting / receiving unit, 10 control unit, 11
Display unit, 12 operation unit, 13 storage unit, 14 printer, 15 photographed image, 16 superimpose, 17
Traveling vehicle, 18 driver, 19 number plate, 20
Photographic paper, 22 control section, 23 backup memory,
25 data transmission unit, 26 parameter setting unit, 28
Sensor, 30 boxes, 31 doors.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04Q 9/00 311 H04Q 9/00 311H 311P F term (reference) 5B089 GA23 JA35 JA36 JB22 KA04 KB10 LB10 MC01 5C054 AA01 CG01 CG07 DA09 FE22 GA00 HA18 5H180 AA01 BB05 CC04 DD07 5K048 BA34 BA42 CA08 DB01 DC01 EA11 EB10 EB15 FC01 GC03 HA01 HA02

Claims (12)

[Claims] 1. An information acquisition unit for acquiring surrounding information, a local control unit for controlling the information acquisition unit based on a parameter value set by a central control device existing in a remote place, and the central control device. And a parameter setting unit for changing the parameter value set by the parameter setting unit. When the local control unit recognizes the possibility that the parameter value has been changed by the parameter setting unit, it recognizes that the parameter value has been changed. A monitoring device, which notifies the central control device of the fact that it has been performed and / or the currently set parameter value. 2. A door provided with an openable / closable door, a control box for storing the parameter setting unit inside the door, and a sensor for detecting opening / closing of the door provided in the control box, The monitoring device according to claim 1, wherein the local control unit recognizes a possibility that the parameter value has been changed, based on a detection result from the sensor. 3. The parameter setting unit has a change operation unit for changing the set parameter value, and the local control unit detects that the change operation unit has been operated, thereby changing the parameter value. The monitoring device according to claim 1, wherein the monitoring device recognizes a possibility of being changed. 4. The local control comprises: first storage means for storing a parameter value; and second storage means for storing a parameter value at a time point set by the central controller as a backup parameter value. The unit notifies the central control unit of the backup parameter value stored in the second storage unit when recognizing the possibility that the parameter value has been changed by the parameter setting unit. The monitoring device according to claim 1. 5. The monitoring device according to claim 4, wherein the second storage means can be changed only by the central control device. 6. The local control unit, when the central control unit determines that the backup parameter value is normal, sets the parameter value stored in the first storage unit to the second storage unit. 6. The monitoring device according to claim 4, wherein the monitoring parameter value is reset to the backup parameter value stored in. 7. An information acquisition unit for acquiring surrounding information, first and second storage units for respectively storing parameter values set by a central control device existing in a remote place, and the first storage. And a local control unit that controls the information acquisition unit based on the parameter value stored in the first storage unit. The local control unit includes: When recognizing the possibility that the parameter value has been changed by the parameter setting unit, the parameter value stored in the first storage means is restored to the backup parameter value stored in the second storage means. A monitoring device characterized by setting. 8. A door provided with an openable and closable door, a control box for storing the parameter setting section inside the door, and a sensor for detecting opening and closing of the door provided in the control box, The monitoring device according to claim 7, wherein the local control unit recognizes a possibility that the parameter value has been changed, based on the detection result from the sensor. 9. The parameter setting unit has a change operation unit for changing the set parameter value, and the local control unit detects that the change operation unit has been operated, thereby changing the parameter value. The monitoring device according to claim 7, wherein the monitoring device recognizes a possibility of being changed. 10. The local control unit compares the parameter value stored in the first storage unit with the parameter value stored in the second storage unit, and these parameter values are different. When it is detected, the parameter value stored in the first storage means is set to the second value.
10. The monitoring device according to claim 7, wherein the backup parameter value stored in the storage means is reset. 11. The information acquisition unit acquires vehicle speed data and image data of the vehicle, and the monitoring device is a vehicle speed monitoring device. Monitoring equipment. 12. A monitoring system comprising a monitoring device for monitoring a surrounding condition and a central control device existing in a remote place for controlling the monitoring device, wherein the monitoring device acquires information about the surroundings. An information acquisition unit, a local control unit that controls the information acquisition unit based on a parameter value set by a central control device existing in a remote place, and a parameter setting that changes the parameter value set by the central control device. The local control unit recognizes the possibility that the parameter value has been changed by the parameter setting unit, and / or recognizes the possibility that the parameter value has been changed, and / or the currently set parameter. A value is notified to the central control device, and the central control device uses the parameter value notified from the monitoring device as the first parameter value. , The parameter values previously set in the monitoring device as a second parameter value,
A monitoring system, wherein the first and second parameter values are compared, and when the parameter values are different, the second parameter value is reset as a parameter value of the monitoring device.