JPH01186023A - Display system for position of mobile body - Google Patents

Abstract

PURPOSE:To reduce the power consumption of a radio equipment and to display the position of a mobile body effectively by detecting the movement of a person or a vehicle or the like by a movement sensor at the mobile side, and controlling the start of a radio transmitter attached to the person or vehicle by the output of the sensor. CONSTITUTION:Assuming the ID number of a handy radio transmitter 1 as '2', then the time from a 1st transmission to the next signal transmission after application of power of the transmitter 1 is within 3min at the longest and a transmission section 11 is started when there is no change in the transmission. The ID number supplied to the transmitter 1 in this state is sent from a signal generating section 12 via the transmission section 11 and an antenna. When the mobile body sensor 13 detects the movement of the mobile body, generates a sensor pulse, and when a counter 14 counts a 4th pulse, the transmitter transmits a signal, and when the sensor pulse number is <= 4th pulse, the counter 14 is reset. The ID number is received by receivers 31a-31n in a mobile zone of a central monitor 3, the signal is processed by a processing unit 32 and the ID number of the transmitter 1 and a relevant zone A are displayed simultaneously on a CRT display device 33.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mobile body position display system, and more particularly to a mobile body position display system that displays the location of a mobile body such as a person or a vehicle at a center using a distributed reception system. It is something.

[Conventional technology]

Conventionally, in this type of mobile object position display system, a wireless transmitter attached to a person, a vehicle, etc. is simply activated and controlled at a certain period.

[Problem that the invention seeks to solve]

The conventional mobile object position display method described above is not efficient because, for example, even when the mobile object is stopped for a long time, the transmitter is activated periodically and continuously, which results in unnecessary information being sent to the center. The disadvantage is that it does not have a proper display method.

Furthermore, since radio waves unnecessary for the transmitting device are emitted, this poses a problem in terms of power consumption, especially in portable transmitting devices.

An object of the present invention is to perform efficient display by linking a mobile sensor with a transmitter and control activation of the transmitter according to operating conditions, and also to reduce power consumption. An object of the present invention is to provide a mobile object position display method.

[Means for solving problems]

The mobile object position display method of the present invention is a wireless mobile object position display system that displays the location of a moving object such as a person or vehicle at a center using a distributed reception method, in which the moving object side detects the operating status of the person or vehicle. a mobile object sensor, and a transmitter that temporally controls the transmission activation of the above-mentioned type or a wireless transmitter attached to a vehicle or the like based on the output of the mobile object sensor, and transmits its own location to a central monitoring device according to the movement status. The central monitoring device is characterized in that it includes processing and display means for processing the received signals and displaying them on a CRT or the like.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1 and 2 respectively show the first embodiment of the moving object position display method of the present invention. A block diagram showing the second embodiment, FIG. 3 is a block diagram showing the first embodiment.
FIG. 3 is a diagram showing a display example of the CRT display in FIGS.

The first embodiment is a wireless transmitter carried by a person with a built-in mobile sensor, and the second example is a wireless transmitter mounted on a vehicle and a separate mobile sensor. be.

In FIG. 1, a portable wireless transmitter 1 includes a transmitter 11
．． Signal generator 12. Mobile sensor 13° counter 14.
Transmission control unit 15. It is composed of a timer section 16. Also,
The central monitoring device 3 is comprised of receiving devices 31a to 31n arranged in each predetermined zone, a processing device 32 for processing and displaying the output signals thereof, and a CRT display 33.

Next, the operation of this embodiment will be explained.

In FIG. 1, the ID number of the wireless transmitter 1 is '2'.
After the wireless transmitter 1 is powered on, the maximum time from the first transmission to the next transmission is within 3 minutes.

Therefore, if there is no change in the state, the transmitter 11 is activated every three minutes, and the ID signal given to the wireless transmitter 1 is transmitted from the signal generator 12 to the transmitter 11. transmitted via an antenna. Here, the moving body sensor 13 is a sensor that generates a pulse every time a human body moves by walking or the like, and is, for example, a sensor like a pedometer. When the moving object sensor 13 is activated and a sensor pulse is output, for example, a 3-second timer of the timer section 16 is activated, and if the sensor pulse is counted four times or more within three seconds, the ID signal is output at the fourth time. Sent out.

Further, if the sensor pulse count by the counter 14 is less than four times within three seconds, the counter 14 is reset. When the human body is moving under these settings, signals are sent from the wireless transmitter 1 at short intervals, but when the body is stopped, no signals are sent. Note that the delivery time shown here is just an example, and it goes without saying that it can be changed depending on the movement of the human body. The ID signal sent from the wireless transmitting device 1 is received by a receiving device (here, referred to as a receiving device 31a) installed in the corresponding zone in the central monitoring device 3, and is data-converted by the processing device 32. The information is displayed on the CRT display 33 as shown in FIG. That is, it can be seen from FIG. 3 that the owner of the wireless transmitter 1 with the ID number "2'° is located in the A zone.

Next, the second embodiment is based on a moving body sensor 23 and a wireless transmitter 2.
The only difference from the first embodiment is that the mobile object sensor 23 is interlocked with the vehicle's odometer, and the counter 24 counts sensor pulses generated every 5-meter meter value. Since the operation of the entire system is similar to that of the first embodiment, detailed explanation will be omitted.

In addition, in the above embodiment, the moving body sensor uses pulses, but it is possible to configure a more detailed position display system by changing the sending interval according to the speed instead of using pulses. is clear.

〔Effect of the invention〕

As described above, the present invention has the effect of reducing the power consumption of the wireless transmitter and at the same time realizing an efficient mobile body position display system by controlling the activation of the wireless transmitter using the mobile body sensor.

[Brief explanation of the drawing]

FIGS. 1 and 2 respectively show the first embodiment of the moving object position display method of the present invention. A block diagram showing the second embodiment, FIG. 3 is a block diagram showing the first embodiment.
FIG. 3 is a diagram showing a display example of the CRT display in FIGS. 1.2...Radio transmitter, 3...Central monitoring device, 1
1... Transmission section, 12... Signal generation section, 13.23.
・・Mobile sensor, 14.24・・Counter, 15・
... Transmission control section, 16... Timer section, 31a, ~31
n...Receiving device, 32...Processing device, 33...C
RT display.

Claims (1)

[Claims] In a wireless mobile object position display system that displays the location of a moving object such as a person or vehicle at a center using a distributed reception method, the moving object side has a moving object sensor that detects the operating status of the person or vehicle, and this moving object sensor. transmitting means for temporally controlling transmission activation of a wireless transmitting device attached to the person or vehicle based on the output of the person or vehicle, and transmitting the location of the person or vehicle to the central monitoring device according to the movement status; A mobile object position display system characterized by comprising processing and display means for processing and displaying a signal on a CRT or the like.