JP2594442B2 - Information transmission system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transmitting information to a vehicle, and more particularly to a method of transmitting and receiving information at a loading place and an unloading place. The present invention relates to an information transmission method for preventing items other than the designated load from being unloaded when the load is unloaded to a designated place.

[Conventional technology]

In cement production plants and petroleum plants, it is necessary to mix raw materials at a predetermined ratio.
The control of the mixture ratio is performed by human eyes.

And according to the conventional accident example, for example, material A
When 0 tons, 200 tons of material B, and 300 tons of material C are required, each of the materials A, B, and C is dropped to a predetermined place by a predetermined amount and mixed. As a result, materials other than the specified materials and unloading without complying with the specified amount occurred, and a large amount of materials became unusable.
A great deal of damage has occurred. In particular, in the case of an oil plant, a serious accident can occur, and the personnel in charge are instructed and trained to ensure that humans can properly manage the accident.

On the other hand, in the case of human unloading management, in general, at the loading place on the transport vehicle, hand the slip describing the content of the load to the driver, carry this slip to the destination with the transport vehicle, and unload it. In this method, the inspector at the location checks the slip and unloads the specified load at the specified location.

However, in such a method, there is a case where a slip is mistaken at the loading place, or the slip is unloaded without confirming the contents of the load even though the contents of the slip and the load are different at the inspection place. Atsuta.

Such an accident occurs because a human performs a checking operation, and is unavoidable.

Therefore, the following has been proposed as a method for managing the raw materials to be transported. In other words, the loading machine that loads raw materials into the transport vehicle is equipped with a device that can transmit information on the type of load and the unloading location, and the transport vehicle is equipped with a device that can transmit and receive this information. The information display device allows the loader and transport vehicle drivers to confirm each other's information, and at the unloading location, the transport vehicle driver and the unloading inspector also use the information display device. By confirming this information, the information collection system is configured and the raw materials to be transported are managed.

According to this method, the transmission of information from the loader to the transport vehicle is performed during the loading operation, and this information is reproduced and confirmed at the destination unloading place and used for raw material management.

[Problems to be solved by the invention]

However, despite the normal transmission of information from the loader to the hauling vehicle at the loading location, the transmission is a normal operation when passing near other loaders on the way during the hauling. Unnecessary information will be propagated and received for vehicles that are already transporting raw materials and are being transported, and as a result, information on the incorrect type of load and unloading location will be collected,
There was a problem that caused serious mistakes in the management of raw materials.

[Means for solving the problem]

The present invention has been made in order to solve the above-described problems, and a sensor for detecting the speed of a transport vehicle to an in-vehicle device and an output from the sensor are output. A timer is provided for holding the output from the sensor for a certain period of time, and the set information content is not reset during the time when the output of the sensor is output from the timer.

[Action]

Information transmitted from another loader to the transport vehicle during transport is not accepted by the transport vehicle.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 5 is a block diagram showing an embodiment of an information transmission method according to the present invention, and FIG. 5 (a) shows an example of a configuration of a device at a loading place.

In the figure, reference numeral 1 denotes a load, for example, coal, and the load 1 is loaded on a transport vehicle 2. Reference numeral 3 denotes a loader who operates the loader 4, and 5 denotes a first code for setting a number corresponding to the load, for example, "V" as information content by a manual switch (not shown) operated by the loader 3. The setting device 6 is mounted on the loader 4 for loading the load 1 and receives the output of the first code setting device 5 as an input and outputs a red as a spatially propagated signal of the information content set in the first code setting device 5. It is a light emitter that emits an external pulse light beam.

Reference numeral 7 denotes an on-vehicle photodetector that receives the infrared pulse light from the light emitting device 6. Reference numeral 8 reads the set code content and sets a preset number of the transporting vehicle and a number corresponding to the load as information content. The vehicle-mounted code setting device 9 is a vehicle-mounted light emitting device that projects an infrared pulse light beam, which is a space-propagating signal having information of the load number and the vehicle number set in the vehicle-mounted code setting device 8, into an external space. The vehicle-mounted code setting device 8 is provided with a sensor 10 for detecting the speed of the transport vehicle 2.

Numeral 11 denotes a terrestrial light receiving device that receives an infrared pulse light beam from the on-vehicle light emitting device 9, 12 denotes a signal reading device that receives the output of the terrestrial light receiving device 11 and reads the content of the received light pulse, and 13 denotes a signal reading device 12. A display board for displaying the interpretation result obtained by
Reference numeral 14 denotes a loudspeaker (speaker) that outputs a voice based on the result of the interpretation.

FIG. 2 is a block diagram showing an extracted portion of the first code setting device 5 in the embodiment shown in FIG. 5 (a), in which a number corresponding to a load, for example, "V" is set. 1 shows an example of a circuit configuration for this.

In the figure, 15 is a switch for setting a number,
The switch 15 is configured to output a number corresponding to "ON" and "OFF" of the switch by a diode matrix. Reference numeral 16 denotes a storage circuit for storing the output of the switch 15, and reference numeral 17 denotes an input of the output of the storage circuit 16 and the continuous oscillation signal from the reference oscillator 18 at a constant period and at a constant period corresponding to the number corresponding to the load. A code generation circuit 19 generates a pulse train signal having a specific pattern. A driver circuit 19 receives an output of the code generation circuit 17 as an input and drives an infrared light emitting diode 20.

FIG. 1 is a block diagram in which portions relating to an on-vehicle code setting device 8 and an on-vehicle light emitting device 9 having the on-vehicle light receiver 7 and the sensor 10 in the embodiment shown in FIG. It best illustrates the features of the invention.

In the figure, reference numeral 21 denotes a light receiving element which receives an infrared pulse light beam from the light emitting device 6 shown in FIG. 5 (a) and converts it into an electric signal, which is constituted by, for example, a photodiode. twenty two
Is an amplifier that receives the electric signal from the light receiving element 21 and converts it into a pulse train signal having a constant pulse width.
A reading circuit 10 for reading an electric signal having a specific pulse train pattern at a constant period from the pulse train according to the pulse train pattern, and a pulse 10 proportional to the rotation speed of a vehicle speed measuring gear in the transmission of the transport vehicle 2. The generated sensor 24 counts the pulses from the sensor 10 at regular intervals, calculates the speed of the transport vehicle 2 and outputs a pulse when the calculation result is not zero, that is, when the transport vehicle 2 is running. The speed detection circuit 25 outputs an output pulse of the speed detection circuit 24, which is an output signal from the sensor 10, and at the time when the output pulse is no longer input, that is, a predetermined fixed time from the time when the transport vehicle 2 stops. And a timer that keeps outputting the output pulse from the speed detection circuit 24 during this fixed time and keeps outputting the pulse. Storage circuit for storing the contents of the contents of the reading circuit 23 and the vehicle ID code setting switch 27, 28
Is a code generator which receives the output of the storage circuit 26 and the output of the reference oscillator 29 as inputs and generates a signal of a pulse train of a specific pattern corresponding to a set code by the reference oscillator 29 at a fixed cycle, and 30 is a code generator This is a driver circuit that drives the infrared light emitting diode 31 with the output of 28 as an input.

FIG. 3 is a block diagram showing the ground light receiver 11, the signal reading device 12, the display panel 13, and the loudspeaker 14 in the embodiment shown in FIG. 5 (a).

In the figure, reference numeral 32 denotes a light receiving element corresponding to the ground light receiver 11 for receiving the infrared pulse light from the vehicle-mounted light emitting device 9 shown in FIG. An amplification circuit for converting an electric signal into a pulse train signal including a vehicle number and a load number, a reading circuit for reading a vehicle number and a load number in accordance with the content of the pulse train of the amplification circuit 33, and a reading circuit for reading the number. A signal generating circuit which receives the output of the circuit 34 as an input and generates a signal corresponding to the information content of the vehicle number and the load number. The signal generating circuit is configured to drive the display circuit 36 and the audio output circuit 37 by the output. I have.
Here, the display board circuit 36 and the audio output circuit 37 correspond to the display board 13 and the loudspeaker (speaker) 14 shown in FIG. 5 (a), respectively.

FIG. 5 (b) shows an example of the configuration of the equipment at the unloading place.

In the figure, reference numeral 38 denotes a roadside light receiving device that receives an infrared pulse light beam from the on-vehicle light emitting device 9 and converts it into an electric signal, 39 denotes an inspection staff, and 40 denotes a second number for setting the number of the load to be unloaded.
The code setting device 41 reads the result of reading the infrared pulse light beam from the road light receiver 38 and the code setting content of the number of the load to be unloaded from the second code setting device 40, and determines whether or not both are the same. 42, a display board for displaying the interpretation result obtained by the interpretation and collation apparatus 41, 43, a loudspeaker (speaker) for outputting sound based on the interpretation result, and 44, a load. It is a designated place to unload.

FIG. 4 shows a portion of the embodiment shown in FIG. 5 (b), which relates to the on-road light receiver 38, the second code setting device 40, the interpretation / verification device 41, the display plate 42, and the loudspeaker (speaker) 43. It is the block diagram shown.

In FIG. 4, the same reference numerals as those in FIG. 5 (b) denote corresponding parts, and reference numeral 45 denotes a vehicle-mounted light emitting device 9 shown in FIG. 5 (b).
A light receiving element corresponding to the on-road light receiver 38 for receiving an infrared pulse light beam from the light receiving element and converting it into an electric signal, 46 is a light receiving and amplifying circuit for converting the electric signal from the light receiving element 45 into a pulse train signal of a specific pattern, 47 is A reading circuit which receives the output of the light receiving amplifier circuit 46 as an input and reads the input, 48 is a storage circuit for storing the result of reading in the reading circuit 47, and 49 is a load to be unloaded set in the second code setting device 40. A reading circuit for reading a number, for example, "V", 50 is a storage circuit for storing the result of reading in this reading circuit 49, 51 is an input of both outputs from the storage circuits 48 and 50, and a number by the transport vehicle and the inspection member 39 A judgment circuit 52 for judging that the contents of the load to be unloaded is the same, and a drive circuit 52 for driving the display board circuit 53, the audio output circuit 54 and the recording printer 55 based on the output of the judgment circuit 51. Here, the recording printer 55
Constitutes a printing device for recording the vehicle number, the number of the load to be unloaded, and the time.

Next, the operation of the embodiment shown in FIG. 5 will be described with reference to FIGS.

First, the operation of the equipment at the loading place will be described with reference to FIGS. 1 to 3 and FIG. 5 (a).

In FIG. 5 (a), for example, a load 1 such as coal
Is loaded on the transport vehicle 2, and at this time, the loader 3
The number corresponding to the load 1 in the code setting device 5 of, for example,
Set “V”. Then, the first code setting device 5 converts the electric signal corresponding to the setting number, for example, “V” into an infrared pulse light beam by the light emitting device 6 attached to the loader 4 that loads the load 1. Then, an infrared pulse light beam is projected toward the light receiver 7 mounted above the driver's seat of the transport vehicle 2.

Here, the first code setting device 5 for setting a number corresponding to the load 1, for example, “V”, is constituted by a switch 15 for setting a number, as shown in FIG. Switch "ON", "OFF" by diode matrix
Is output to the storage circuit 16, and the output of the storage circuit 16 and the continuous oscillation signal of the reference oscillator 18 output
The code generation circuit 17 generates a pulse train signal having a specific pattern at a constant period corresponding to the number at a constant period. The signal of this pulse train is applied to the infrared light emitting diode 20 through the driver circuit 19, and is output to the space as an infrared pulse signal.

In the case of the method according to the present invention, the reason why the configuration shown in FIG. 2 is adopted is that various settings can be made.
In particular, without such a configuration, a code may be set by intermittently oscillating a specific frequency.

The infrared pulse light received by the on-vehicle light receiver 7 of the transport vehicle 2 is converted from the infrared pulse light into an electric signal of a pulse train having a constant cycle by the on-vehicle light receiver 7 and set by the on-vehicle code setting device 8. The contents of the information are read, and the vehicle number set in advance is added to the vehicle-mounted code setting device 8.
That is, the number indicating the load 1 is combined with the vehicle number,
At the same time, these codes are emitted again from the vehicle-mounted light emitting device 9 toward the ground light receiving device 11 as infrared pulse light.

Here, the on-vehicle code setting device 8 and the on-vehicle light emitting device 9 having the on-vehicle light receiving device 7 and the sensor 10 are configured as shown in FIG. 1, and the light receiving element 21 forming the on-vehicle light receiving device 7 emits an infrared pulse light beam. The signal is converted into an electric signal, and is converted into a pulse train signal having a constant pulse width by the amplifier 22. The electric signal having a specific pulse train pattern at a constant period obtained in this manner is read by the reading circuit 23 according to the pulse train pattern, and the contents thereof are stored in the storage circuit 26. This storage operation is performed by the timer
When a pulse is being output from 25, the storage circuit 26 is prohibited from performing this storage operation. That is, the storage operation of the storage circuit 26 is performed when a pulse is not output from the sensor 10, that is, when the transport vehicle 2 is stopped and the timer 25 has counted a predetermined period of time. This fixed time is determined in consideration of the time required for loading the load 1 on the transport vehicle 2 and a temporary stoppage time during transportation described later, and is usually about the loading time of the load 1.
It is set to about 30 seconds as about 1/2. At the time of this storage, the vehicle number is added to the storage circuit 26 by the vehicle number code setting switch 27, and the code generator 28 generates a code including both the load number and the vehicle number. The code generator 28 generates a signal of a pulse train of a specific pattern corresponding to the set code at a constant cycle by the reference oscillator 29, and passes through the driver circuit 30 from the infrared light emitting diode 31 to the space as infrared pulse light. Projected. Here, this infrared light emitting diode 31 is the fifth
This corresponds to the on-vehicle light emitting device 9 shown in FIG.

The infrared pulse light projected into this space is shown in FIG.
The light is again received by the ground light receiver 11 of the loading station shown in (1) and is converted into an electric signal.The electric signal is input to the signal reading device 12, and the content of the received pulse is read by the signal reading device 12, and this signal is read. The reading result is displayed on the display 13 of the loading station with the vehicle number and the load number, and the voice from the voice output loudspeaker (speaker) 14 is transmitted to the driver 56 and the loader 3 of the transport vehicle 2. Inform.

Here, the operations of the ground light receiver 11, the signal reading device 12, the display panel 13, and the like will be described in more detail with reference to FIG.

The infrared pulse light from the in-vehicle light emitting device 9 shown in FIG. 5A is converted into an electric signal by the light receiving element 32, and the electric signal is interpreted by the amplifier circuit 33 as a pulse train including the vehicle number and the load number. The vehicle number and the load number read in accordance with the contents of the pulse train by the reading circuit 34 are displayed on the display board circuit 36 and the sound output circuit 37 through the signal generating circuit 35 and output as sound.

In this way, at the loading station, the loading contents and the vehicle number are confirmed by the driver 56 and the loading person 3 at predetermined times, for example, three times for three minutes every time loading is performed. In this case, the loader 3 operates the first code setting device 5 only once and keeps the setting state as long as the contents of the load do not change, so that the transport vehicle 2 comes to the loading place. The code is set automatically.

In the first code setting device 5, a switch for loading and a switch for emitting infrared pulses are configured to be linked with each other.

In this way, the transport vehicle 2 in which loading is completed moves to the unloading place while emitting the infrared pulse light from the vehicle-mounted light emitting device 9.

During this movement, the sensor 10 attached to the transport vehicle 2 detects the traveling state of the transport vehicle 2, and the speed detection circuit 24 shown in FIG. To continue, even if the transport vehicle 2 passes near another loader during transportation, the information content transmitted from this loader is not received from the readout circuit 23 by the storage circuit 26, and is set in the storage circuit 26. The resetting, that is, the rewriting of the information content is not performed. In addition, even if the transport vehicle 2 is temporarily stopped during transportation to prevent danger just before another loader is working, the storage circuit 26
Is not changed regardless of the information transmitted from the loader. This is because the above-mentioned timer 25 operates, and a predetermined period of time, for example, about 30 minutes.
This is because the output pulse from the timer 25 to the storage circuit 26 is held for about a second, so that the pulse during traveling continues to be output even if the transport vehicle 2 is temporarily stopped. For this reason, the information content set during the loading operation is protected without being changed during the transportation, and an unnecessary reception signal while moving is not accepted.

Next, the operation of the equipment at the place where the load is unloaded will be described with reference to FIGS. 4 and 5 (b).

In FIG. 5 (b), when the transport vehicle 2 enters the unloading place, the infrared pulse light is received by the on-road light receiver 38, and the output is applied to the interpretation / verification device 41. Here, the inspection staff 39 sets the number of the load to be unloaded, for example, “V”, to the second code setting device 40 having the same function as the first code setting device 5 at the loading place. Then, the set contents are read by the reading / collating device 41, and the on-road
When the signal of the load is matched with the signal of the load from the vehicle 38, the name of the load and the entry permission are displayed on the display plate 42, and at the same time, the name of the load and the entry permission to be lowered by voice from the loudspeaker (speaker) 43 are indicated on the transport vehicle 2. Inform the driver 56 and the inspection staff 39 of the transportation vehicle 2 and the transport vehicle 2 unloads the cargo at the designated place 44.

Here, the operation of each device at the unloading place will be described in more detail with reference to FIG.

The infrared pulse light from the in-vehicle light emitting device 9 shown in FIG. 5B is received by the light receiving element 4 shown in FIG. 4 and converted into an electric signal. The output is applied to a reading circuit 47, and the result of reading by the reading circuit 47 is stored in a storage circuit.

On the other hand, the number of the load to be unloaded, for example, "V" is set by the second code setter 40 by the inspector 39, and the setting result is input to the reading circuit 49 for reading, and the reading circuit 49 reads the result.
Is stored in the storage circuit 50.

The respective outputs of the two storage circuits 48 and 50 storing the respective information contents thus obtained are added to the determination circuit 51,
The judgment circuit 51 outputs the judgment result to the drive circuit 52 when the number of the transporting vehicle 2 matches the contents of the load to be unloaded by the inspection member 39, and outputs the judgment result via the display board circuit 53 (FIG. 5). At the same time as displaying the load name and the entry permission on the display plate 42 shown in FIG.
The driver 56 and the inspection staff 39 of the transport vehicle 2 are notified by voice from a loudspeaker (speaker) 43 shown in FIG. Also,
As a result, the recording printer 55 records data such as the vehicle number, the number of the load to be unloaded, and the time.

In the above embodiment, the infrared signal is used as the spatially propagating signal. However, the signal may be another sound wave signal or radio wave signal. Although the method using the pulse obtained in proportion to the above is shown, the speed may be detected by using the Doppler effect, or the sensor, the speed detection circuit, and the timer may be installed in a transport vehicle. Although it is shown, it may be one that installs equivalents to the loader, controls transmission of information from the loader to the transport vehicle based on this output, and stops and executes this transmission, An effect similar to that of the above embodiment is obtained.

〔The invention's effect〕

As described above, the present invention provides a sensor for detecting the speed of a transport vehicle to an in-vehicle device and outputs an output from the sensor, and also outputs a signal from the sensor when the transport vehicle is stopped. By providing a timer to hold the output and not to reset the set information contents during the time when the output of the sensor is output from this timer, the other loading machine can transfer to the transport vehicle during transport. Information transmitted to the transport vehicle will not be accepted by the transport vehicle, and the information content set during loading during transport will be protected without being changed, and the information content will be changed during transport as in the past, and the management of raw materials This has the effect that an information transmission method that does not cause the above serious mistake can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram relating to an on-vehicle code setting device according to an embodiment of the present invention, FIG. 2 is a block diagram relating to a first code setting device, and FIG. FIG. 4 is a block diagram relating to a photodetector on the road, and FIG. 5 is a block diagram of each device constituting an embodiment of the present invention. 1 ... Loaded goods, 2 ... Transportation vehicle, 4 ... Loading machine, 5 ...
... First code setting device, 6... Light emitting device, 7... On-vehicle light receiving device, 8.
… Sensor, 11… Ground light receiver, 12 …… Signal reading device, 13
... display board, 14 ... loudspeaker (speaker), 24 ... speed detection circuit, 25 ... timer, 38 ... road receiver, 40 ... second code setting device, 41 ... decision matching device, 42 ... display board, 43 ... loudspeaker (speaker), 55 ... printer.

Claims (1)

(57) [Claims] 1. A load number corresponding to a load to be loaded on a transport vehicle, which is disposed at a load loading location, is transmitted to the transport vehicle by a predetermined space propagation signal, and transmitted from the transport vehicle by the space propagation signal. A loading place device that notifies the loader number and the vehicle number of the transport vehicle, and a load number transmitted from the loading place device by the space propagation signal, which is disposed in the transport vehicle, and a preset vehicle number. And a vehicle-mounted device that transmits the set load number and vehicle number using a space propagation signal, and a load number that is disposed at the loading / unloading place and transmitted from the transport vehicle by the space propagation signal. A loading / unloading location device that determines whether or not the load loaded on the transport vehicle is a preset load to be unloaded and notifies the result thereof, The loading place device includes: a first code setting device that sets a load number corresponding to the load as information content by a manual switch; and a spatial propagation signal indicating the information content set in the first code setting device. A transmitter for transmitting to the on-vehicle equipment, a terrestrial receiver for receiving a spatial propagation signal from the on-vehicle equipment, a signal reading device for reading the output of the terrestrial receiver, and a load obtained by the signal reading device First display means for displaying a number and a vehicle number as a result of interpretation, and first loudspeaker means for outputting a voice based on the result of interpretation, and the on-vehicle device transmits a spatially propagated signal from the loading place device. An on-vehicle receiver for receiving, a sensor for outputting a predetermined sensor signal according to the traveling of the transport vehicle, and outputting the sensor signal from the sensor,
A timer for holding and outputting the sensor signal for a predetermined period of time after the stop of the transport vehicle, and reading the output of the onboard receiver to obtain the load number and the vehicle number, An in-vehicle code setting device that sets the load number and the vehicle number as information contents, and does not reset the set information contents when the sensor signal is output from the timer; An on-board transmitter that transmits a space propagation signal containing the in-vehicle object number and vehicle number set in the setting device to the loading and unloading equipment, and the unloading equipment is mounted on the vehicle A ground receiver for receiving a spatially propagated signal from equipment for use, a second code setting device for setting a load number to be unloaded, and an output of the ground receiver. And obtaining the load number and the vehicle number, collating the obtained load number with the load number to be unloaded set by the second code setting device, and judging the coincidence. And second display means for displaying the determination result obtained by the deciphering and collating device, and second loudspeaker means for outputting voice based on the result of the decision; a load number obtained by the deciphering and collating device; An information transmission system, comprising: a printing device that records a number and a time.