JPH04183197A - Data collector - Google Patents

Abstract

PURPOSE:To make it possible to discriminate the moving direction of a mobile body without laying another line between a data collector and an external unit by making the data collector receive reradiation wave from a data sending unit, by reading state information from the external unit at the same time when reading out ID information from the external unit, and by sending the state information together with ID information. CONSTITUTION:When a mobile body 25 equipped with a data sending unit 24 moves from right to left, a photo sensor 22 reacts and sends a state information signal to a data collector 21. At this point of time, the data collector 21 itself receives a signal from the data sending unit 24, decodes the signal, attaches a state information signal to the decoded signal, and sends it to the external unit. With this, the external unit can deal with receiving a mobile body's number and discrimination of a traveling direction that the mobile body is approaching from right at a time. Further, the same can apply to a mobile body traveling in the opposite direction. As a result, the moving direction of a mobile body can be easily discriminated without laying out such long wiring from a peripheral unit to the external unit.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a data collection device used for number identification of all types of moving objects such as trains and automobiles.

Conventional technology Conventionally, in this type of data acquisition device, the output of a microwave band oscillation circuit is amplified by a power amplifier circuit, and then radiated as a radio wave from an antenna.The data transmission device receives and detects this radio wave. Furthermore, according to the ID (1 dentiby: identification) information built into the data transmission device, the radio wave is modulated and re-radiated, and the data collection device receives this again and demodulates it to read out the ID information. , was equipped with a circuit that transmits the ID information to an external device at the moment the ID information is read.

Problems to be Solved by the Invention However, with the conventional data collection device described above, when receiving re-radiated radio waves from the data transmission device, it is not possible to ascertain the moving direction of the data transmission device, and the data is only collected. There was a problem in that it was possible to only know the history of passage through the installation point of the collection device.

The present invention solves these conventional problems,
The purpose of the present invention is to provide an excellent data collection device that does not require long-distance wiring from peripheral devices to external devices, and that can simultaneously determine the moving direction of a moving object to which a data transmission device is attached. It is. , Means for Solving the Problems In order to achieve the above object, the present invention provides a decoding circuit that reads out ID information by receiving and decoding re-radiated radio waves from a data transmission device, and a time point at which this ID information is read out. An external information input circuit that simultaneously reads status information from various devices surrounding the device, and a signal control unit that transmits status information to the external device along with ID information are provided. The modulated wave is decoded and I
At the same time as reading the D information, the external information input circuit reads the status information of various devices at the same time, and the signal control r
Part B adds status information to ID information and transmits the information to an external device.

Therefore, according to the present invention, when the data collecting device receives re-radiated radio waves from the data transmitting device and reads out the ID information, the state information from the external device is simultaneously read, and the I.D.
By transmitting information to an external device along with the D information, when the data transmission device is attached to a moving object, status information is used to determine whether the moving object is approaching from the left or the right. There is no need to newly establish a separate line between the external device and the external device to obtain the information, and the moving direction of the moving body can be easily determined.

Example FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, 11 is an oscillation circuit, 12 is a power amplification circuit that amplifies the power of the output of the oscillation circuit 11, and quasi-microwaves are transmitted from an antenna 14 as radio waves through a circulator 13.

15 is a data transmitting device that receives and detects the quasi-microwave transmitted from the antenna 14, modulates the radio wave according to the built-in ID information, and re-radiates it so that it can be received by the antenna 14; (not shown).

Reference numeral 16 denotes a decoding circuit which decodes the modulated signal received by the antenna 14 and passed through the circulator 13 and reads out the ID information, which is re-radiated by the data transmitting device 15; This is an external information input circuit that reads a status information signal from (not shown).

Reference numeral 19 denotes a signal control unit that adds a status information signal taken in by the external information input circuit 17 to the received signal decoded by the decoding circuit 16 and sends it out from the external device connection terminal 20.

Next, the operation of the above embodiment will be explained. In the above embodiment, first, the oscillation output in the quasi-microwave band output from the oscillation circuit 11 of the data acquisition device is transmitted to the power increase circuit 1.
2 amplifies the power, the output is passed through a circulator 13, and quasi-microwave radio waves are transmitted from the antenna 14.

The data transmitting device 15 receives and detects this quasi-microwave radio wave, further modulates it according to the ID information, and re-radiates the radio wave from the data transmitting device 15. As a result, the antenna 14 in the data collection device receives the signal, and the received signal is passed through the circulator 13 to the decoding circuit 16.
The decoding circuit 16 decodes the ID information and outputs the received signal to the signal control section 19.

On the other hand, the external information input circuit 17 reads the status information signal from the peripheral device inputted from the signal terminal 18 and outputs it to the signal control section 19 .

In this single signal control section, an information signal inputted from the external information input circuit 17 is added to the received signal from the decoding circuit 16, and an external device (not shown) is connected to the external device connection terminal 20.
Output to.

FIG. 2 shows an example of actual equipment installation. 21 is the first
This is a data collection device having the above-mentioned configuration, which includes components other than the data sending device 15 shown in the figure, and 22 and 23 are optical sensors.

Reference numeral 24 designates a data sending device that is the same as the data sending device 15 shown in FIG.

Next, the operation of the embodiment shown in FIG. 2 will be explained. The moving body 25 to which the data sending device 24 is attached is shown at the second forked arrow A.
As shown at 1, when moving from right to left, the optical sensor 22 reacts and sends out a status information signal to the data collection device 21. At that point, the data collection device 21 itself receives and decodes the signal from the data transmission device 24, adds the above-mentioned status information signal, and transmits it to the external device.

As a result, the external device can simultaneously receive the mobile number and determine the moving direction that the mobile object is approaching from the right.

In addition, in the above explanation, the moving direction of the moving body 25 is indicated by the arrow A.
Although the explanation has been given by taking the case of one direction as an example, it goes without saying that even when moving in the opposite direction to the arrow A1, reception of the mobile number and determination of the direction of the mobile can be performed simultaneously in the same manner as described above.

In this way, according to the above embodiment, the data sending device 15
The data collection device reads the status information signal of the peripheral device at the time the data collection device receives the re-radiated wave from the device, adds data, and sends it to the external device. This has the advantage that there is no need to pull the object, and the moving direction of the moving object can be easily determined.

Effects of the Invention As is clear from the above embodiments, the present invention has a built-in circuit for reading status information signals from external devices such as signal devices or optical sensors installed on both the left and right sides of a data collection device, and is attached to a moving body. When the re-radiated waves from the data transmission device are received and the ID information is read out, the status information signal is read at the same time, and the information is transmitted to the external device along with the above-mentioned ID information. It is said that there is no need to newly install a separate drawing line between the external device and the external device to obtain the status information signal to determine whether the moving object with the attached device is approaching from the left or the right. This has the advantage that the direction of movement of a moving body can be determined instantaneously.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a data collection device according to an embodiment of the present invention, and FIG. 2 is a sketch showing an example of the actual equipment installation of the same device. 11... Oscillation circuit, 12... Power amplifier circuit, 13.
...Circulator, 14...Antenna, 15.24
...Data sending device, 16...Decoding circuit, 17...
- External information input circuit, 19... signal control section, 21...
・Data collection device, 22.23... Optical sensor, 25.
...A moving object. Name of agent: Patent attorney Akira Okaji Baka 2 people 15
data sending device

Claims (1)

[Claims] A power amplifier circuit that amplifies a quasi-microwave band signal so that it is radiated as a radio wave from the antenna, and a power amplifier circuit that receives and detects the radio wave, modulates the radio wave according to built-in identification information, and re-radiates it from the data transmission device. a decoding circuit that decodes and reads out the identification information after receiving the radio wave with the antenna; an external information input circuit that reads the status information signal from the peripheral device at the time when the identification information is read out by the decoding circuit; A data collection device comprising a signal control unit that adds the status information taken in by the external information input circuit to the identification information decoded by the decoding circuit and transmits the information to an external device.