JPS58211680A - Discriminating device for number of moving body - Google Patents

Abstract

PURPOSE:To enable the automatic and easy renewal of a number in a responder, by making a transmitting-receiving device on the ground side transmit a signal of number renewal instruction, and by renewing the number in the responder by means of a number renewal circuit. CONSTITUTION:An interrogator 201 decodes a code of a responder 202, and when a renewal of a number is required, a number information stored beforehand in a number renewal control circuit 7 of the interrogator 201 is transmitted from a transmission circuit 1 and a transmission antenna 2 as an intermittent signal of a carrier wave. When a signal of number renewal instruction prescribed beforehand is sent from the interrogator 201, the responder 202 stops reading the code. Meanwhile, on the side of a number renewal circuit 205, a write data storage circuit 30 stores the information transmitted from the interrogator 201, and thereafter a write control circuit 29 delivers a control signal to a number storage circuit 24, and the writing of data is performed according thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile number identification device that transmits and receives information without having a unique source.

A conventional device of this type is shown in FIG. In the figure, (101) is a 6-space device (
The ground-side transceiver gt), (102) is a mobile transponder without a power source, which is not mounted on a moving body. Interrogator (101)
is a transmitting lol path 11), a transmitting antenna 12), a receiving antenna (3), an intermediate frequency conversion circuit (4), 1 frequency shift thousand-ing demodulator (hereinafter referred to as FSK demodulator) +51
.

and a decoder (6). On the other hand, the transponder transponder (102) includes a receiving antenna f211, a rectifier circuit (2), a code sending 11jJ path and a 0 number storage circuit Q4),
It consists of a modulation channel (hole), a transmitting antenna +261, a modulated wave oscillator -, and a frequency switch H (Fig. 1).

Next, the operation will be explained.

The transmitting circuit (1) of the interrogator (101) transmits a carrier wave (car wave between C) for a predetermined period of time by an external activation signal when a mobile object passes in front of the interrogator (101).
Send from 2).

- In the mobile transponder (102), the receiving antenna (
2+1 receives this carrier wave, and the Il flow circuit ■ receives the receiving air M
The received signal of 12+1 is converted to DC, and the mobile transponder (1
A +1τ source is supplied to each part of 02). The code sending circuit reads the binary storage contents from the number storage circuit (241) and returns %II.

% Q J code string, and according to this order, the switching circuit performs frequency shift keying (FSK) of the oscillation frequency of the modulated wave oscillator tube in unit time width.
The timing of the data applied to the is provided by an internal clock oscillator. A response radio wave (response signal) is created by mixing the reception input and the FSK signal, and is sent to the transmission line (response signal).
It radiates from 261.

Then, in the interrogator (101), the receiving antenna 13)
receives the response signal from the transponder (102), and the received response signal is transferred to the intermediate frequency conversion 1!2 circuit! 4), F
It is decoded via an SK decoder (5) and a decoder 16), thereby identifying the number of the mobile unit.

As described above, the conventional mobile number identification vifPt is configured to detect the fixed number of the mobile transponder stored in advance, so if the number of the transponder changes, the memory of the transponder is The disadvantage was that parts had to be replaced or the transponder had to be replaced with another transponder. Particularly in the case of a system configuration in which mobile transponder numbers change frequently, the fixed number system often becomes unusable in actual continuous use.

This invention was made in order to eliminate the drawbacks of the conventional ones as described below.A number rewriting circuit is added to the mobile transponder, and a number rewriting command signal is transmitted from the ground-side transmitting/receiving device. The number storage circuit that receives the number rewriting command signal writes the number in the number storage circuit of the mobile transponder to the IIS.
The object of the present invention is to provide a mobile number identification device that allows the user to change the number freely.

An embodiment of the present invention will be described below with reference to FIG.

FIG. 2 shows a mobile number identification device according to an embodiment of the present invention. It is a mobile transponder with no VVXH onboard. 4 unit (2
01) is a transmitting circuit 11), a transmitting antenna (21, a receiving antenna 13), an intermediate frequency conversion circuit 141, and a FSK.
Re-embrittlement device (5).

The interrogator (201) consists of a decoder 16) and a number correction control circuit (7), and the interrogator (201)
#Send a shout V\bin command signal and send it to the F4 dynamic transponder (2
02) is transmitted to a receiving circuit (203) consisting of a circuit +41151 f61 to identify a mobile object. The mobile transponder (202) receives the receiving antennas 21+, ! Flow circuit (IT source creation circuit) (2),
Code sending circuit Q1. Reloadable number storage circuit (2
41, f-magazine circuit (c), transmitting antenna (a), variable g-wave oscillator (2), 1-frequency cutoff 41111rJi circuit (2), p (consisting of a control circuit 1291 and a data storage circuit ■) The transponder (202) has a rectifier circuit (202).
) detects the above fishing transmission wave, and the source of til1 IJjr is W.
When it is, read the number from outside the No. 4 memory circuit and put it on the 1st river! 251 (II71 (to)) is configured to transmit by a transmitting circuit (204).
Embedded control circuit 12! l and river data storage circuit Ca
A number rewriting circuit (205) is constituted by I, and upon receiving the number rewriting command signal, the number rewriting circuit (205) changes the number in the number storage circuit 24+ to the number determined by the number rewriting command signal. The barrels can be changed.

Next, I will explain about Wh's work.

The transmitting circuit (1) of the interrogator (201) is
201) When the front is 11 yen, the central line (2
Send from 1.

In the mobile transponder (202), the receiving antenna 121)
receives this carrier wave, and the rectifier circuit receives the receiving antenna (2
1) converts the signal from
Supply Ichihara to each department. The code sending circuit reads the binary storage contents from between the storage circuits, and the switching inverter 17j5 performs frequency shift keying (FSK) on the oscillation frequency of the modulated wave oscillator surface according to the successive codes of '1#I'O'. do. This FSK signal is mixed with the threat transmission wave supplied from the interrogator (201) and sent out from the transmitting antenna (a) toward the interrogator (201).

After decoding the code of the transponder (202), the interrogator (201) decodes the code of the transponder (202), and if the transponder (202) is required to exchange numbers, the interrogator (201) decodes the code of the interrogator (201) in advance. ) The number information stored in the carrier wave is interrupted by 6''4 signals and sent from the transmitter 1, 1, +11 and the transmitter antenna 12). Compared to the standard 1 go, several times the performance 'FW f+:
Because it requires , the intrusion control is applied...1
The transmission power of the interrogator (201) is increased to a predetermined power so that the transponder (202) can receive the required signal.

If, (202) ill, the interrogator (201) sends a predefined number rewriting command signal to the chanting and reading of the ``Ladle number'', and also performs the number exchange-1. (20Ft) In this case, write data storage IC! Route 1 (2) stores the information sent from the interrogator (201), and then sends a control signal to the direct access control circuit (2gI) to write data.

In other words, Fig. 3 (al indicates the continuous state of the carrier wave sent from the Saema device (201); in Fig. 1, part A is the write synchronization pulse, part B is the data, and part 0 is the pulse for error checking. In the mobile transponder (202), this intermittent wave is rectified and collected as a pulse, and the internal clock (
3(9)1(b)), and the number rewriting circuit (205) thereby writes the voice-in data in the first order into the memory circuit 124J.

In addition, in the embodiment described in L, the case where data is automatically written from the interrogator was explained.
A separate device may be provided, and the number can be easily rewritten using this dedicated device. Further, as the V-wave transmitted from the interrogator, a modulated wave such as FM or PM may be used as necessary.

As described above, according to the present invention, a number replacement circuit is added to the transponder R11, a number rewrite command signal is transmitted from the transmitter value on the ground side, and the number fi that receives this number rewrite command signal is : 4011? By the way, the vinegar number of the responder is freely #
Since the transponder can be changed, the transponder can be changed automatically and easily, and there is an advantage that there is no need to manually change the transponder every time the number fψ is changed.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of a conventional mobile phone number intrusion system;
9'l is a block diagram of a moving object/4-way identification device according to an embodiment of the present invention, and Figure 3 (tal) shows an example of a carrier wave from the interbook device of the above device. Device number!! It is a diagram showing the internal clock of the replacement device. (201) ・= *r 1fil device (ground h 1til
l transmission/reception (fl'J*g), dl-transmission i3.
(203)...Receiving circuit, (202)...1 hyperactive transponder, (221...Adjustment circuit (Shugen creation garden path)
, Art)...Number storage circuit, (204)...Transmission (1 circuit, (205)...Number rewriting circuit g3゜In the figures, the same reference numerals indicate the same or equivalent parts. Agent Yorozu Faith

Claims (1)

[Claims] (1) A transmitting circuit that transmits Ryuuma Raiha to the mobile transponder described later, and transmits a number rewriting command signal on the interrogation radio wave as necessary, and receives a response signal from the mobile transponder described later. A ground-side transmitting/receiving device having a receiving circuit that identifies the number of a mobile object, and an N#! a generation circuit, a number storage circuit that stores the number, a transmission circuit that transmits the number as a response signal when an operating m source is obtained in the city source generation N path, and a transmission circuit that receives the number autopsy command signal. 1. A mobile number identification device comprising a mobile transponder having a number rewriting circuit for rewriting a number in a number storage circuit.