CN2749182Y

CN2749182Y - User identity monitor for radio station or handheld interphone communication network

Info

Publication number: CN2749182Y
Application number: CNU2004200863794U
Authority: CN
Inventors: 庞建民; 贾西海
Original assignee: XI'AN FIRE DETACHMENT
Current assignee: XI'AN FIRE DETACHMENT
Priority date: 2004-12-15
Filing date: 2004-12-15
Publication date: 2005-12-28
Anticipated expiration: 2014-12-15

Abstract

The utility model relates to a user identity monitor of a communication network of a radio station or a handheld interphone, which comprises a dual-tone multifrequency coded signal receiving circuit, a dual-tone multifrequency coded signal demoding circuit and an SCM processing system which can mainly display in real time and store the date time of users' talking and users' identity encode, wherein, the SCM processing system is at least composed of an SCM, an address latch, a random access memory, a keypad circuit and a display circuit which are connected. The utility model uses the SCM system to realize the functions of displaying in rear time and store the date time of users' talking and users' identity encode and is capable of looking at any time for performing the functions of the real time monitoring and the record monitoring of the network communication. Simultaneously, by utilizing a switching value output circuit, the functions of alarm and remote control by a handheld interphone can be realized conveniently. Particularly, the alarm under the condition of no speaking ability by utilizing the handheld interphone is an important function for users.

Description

The user identity monitor of radio station or hand-held intercom communication network

Technical field

The utility model is the user identity monitor of a kind of radio station or hand-held intercom communication network, it can show and store user's the identity coding and the date and time of conversation in real time, is mainly used in the radio station of armies such as fire-fighting, public security, People's Armed Police, special policeman and security personnel or the communication system of hand-held intercom.

Background technology

Armies such as present domestic fire-fighting, public security, People's Armed Police, special policeman and security personnel use radio station or hand-held intercom to carry out communication more at large.Because the general employing of this communication network all is open channel, so a certain user often occurring consciously or unconsciously sends garbage or frequently presses PPT emission key, busy channel and make the situation that other user can't communication, especially in case of emergency, order can't be assigned, and causes serious consequence.Because this communication network can not be learnt the identity of communication user, so, the generation of above-mentioned situation can't be controlled.

The utility model content

The purpose of this utility model is the problem at above-mentioned prior art, the user identity monitor of a kind of radio station or hand-held intercom communication network at first is provided, the date and time and the identity coding that show and store user's communication by this monitor in real time, for providing necessary user, user management in netting uses information, thereby strictly use discipline targetedly, overcome above-mentioned shortcoming.Next is that needs at the user utilize this monitor to develop some new functions, as: with hand-held intercom warning, remote control etc., thereby be user-friendly to.

For achieving the above object, solution of the present utility model is as follows:

It has decoding circuit and the main scm managing system that the date and time and the identity coding of user's communication are shown in real time and store of the receiving circuit of a double-tone multi-frequency coding signal, a double-tone multi-frequency coding signal, this scm managing system is connected and composed by single-chip microcomputer, address latch, random asccess memory, keypad circuit and display circuit at least, and described receiving circuit joins by a data input interface of described decoding circuit and single-chip microcomputer.

On the output interface of above-mentioned single-chip microcomputer, be provided with a switching value output circuit.

On the serial data communication port of above-mentioned single-chip microcomputer, be connected to a serial o controller.

By above-mentioned solution as can be seen, the utlity model has following characteristics:

1, realizes the function of real-time demonstration and storage user's communication date and time and identity with Single Chip Microcomputer (SCM) system, and can browse at any time and check, played the effect that network communication real time monitoring and record monitor.

2, utilizing the switching value output circuit of this monitor can realize easily reporting to the police and distant control function with hand-held intercom, particularly utilize hand-held intercom to report to the police under the situation of the ability of not talking, is the in demand function of user.

3, this monitor also can be input to PC easily with subscriber identity information, learns the more detailed data of user by PC, makes the more perfect function of this monitor.

Description of drawings

Fig. 1, functional-block diagram of the present utility model.

Fig. 2, receiving circuit schematic diagram.

Fig. 3, decoding circuit schematic diagram.

Fig. 4, single chip circuit schematic diagram.

The circuit theory diagrams of Fig. 5, address latch and random asccess memory.

Fig. 6, display circuit schematic diagram.

Fig. 7, switching value output circuit schematic diagram.

Fig. 8, keyboard circuit schematic diagram.

The circuit theory diagrams of Fig. 9, serial o controller.

Figure 10, displaying contents schematic diagram.

Embodiment

Describe structure of the present utility model and operation principle in detail according to embodiment below.

Referring to Fig. 1, be that example describes with single channel wireless radio station or hand-held intercom communication network below, this communication is made up of a plurality of radio station and a plurality of hand-held intercom.During work, each radio station or hand-held intercom all are in the state of answering, and when a certain user pressed the PPT emission key of radio station or hand-held intercom in the net, he just can talk by busy channel, and then each radio station or hand-held intercom can be heard his sound.Each radio station or hand-held intercom itself all have the function that identification cipher is set, in order to realize the function of this monitor, need to activate it, that is to say the function that a dual-tone multifrequency identity coding signal of emission before speech or after the speech is set on each radio station or hand-held intercom.In order to make this monitor can receive the identity coding signal that each radio station or hand-held intercom are sent, need a radio station 1 is set, and the Mike in this monitor 2 receiving circuits is aimed at the loud speaker in radio station 1 in arrangement place of this monitor.

Referring to Fig. 1,2, the receiving circuit 2-1 of the touch-tone signal of this monitor is a band-pass filter amplifier that is connected into by amplifier IC1, and is connected to Mike's pickup circuit at this band-pass filter amplifier positive input terminal.(wherein contain dual-tone multifrequency identity coding signal) when sound in the radio station, Mike P1 sends into audio signal to band pass filter, amplifies outputting dual tone multi-frequency signal by the band-pass filter amplifier gating, and other audio signal filtering.

Referring to Fig. 1,3,4, the decoding circuit 2-2 of the touch-tone signal of this monitor is connected and composed by decoding device IC2 and peripheral cell thereof.The touch-tone signal IP of described receiving circuit output, send into the input (2 pin) of decoding device IC2 by capacitor C 6 and resistance R 11, this decoding device is decoded into the 8421BCD sign indicating number with touch-tone signal, after decoding successfully, this device is sent an interrupt request singal from its 15 pin earlier, and send into the middle broken ends of fractured bone INT0 of single-chip microcomputer IC4 by a level shifting circuit T1, subsequently with its decoding 8421 yards of gained (QB0～, send into P1.0～P1.3 end of the data input/output interface P1 of single-chip microcomputer IC4 QB3) from the output of 11～14 pin.

Referring to Fig. 1,4, described single-chip microcomputer 2-3 is the master controller of this monitor, is mainly used in input and output and the demonstration and the storage of control touch-tone signal, and supports the query display of Keyboard Control to data.For the time of the identity coding of displayed record reception in real time when showing identity coding, this monitor has been selected a single-chip microcomputer device IC4 that can constitute clock in inside for use.Reset terminal 9 pin of this single-chip microcomputer IC4 are connected to a house dog device IC3, are used for resetting of Single Chip Microcomputer (SCM) system.

Referring to Fig. 1,4,5, described random asccess memory 2-4 is mainly used in temporary double-tone multi-frequency coding information, handles and demonstration for single-chip microcomputer.(P0.0～P0.7) join with address latch IC5 and random asccess memory IC6 corresponding ports as least-significant byte address wire and 8 position datawire AD0～AD7, P2.0～P2.5's P0 mouth of described single-chip microcomputer of the P2 mouth of single-chip microcomputer joins as high address line A8～A12 and random asccess memory IC6 corresponding ports.Wherein the chip selection signal A13 of this random asccess memory part of the P2.5 of single-chip microcomputer end output sends into its sheet and selects control end (20 pin), and the end (27,22 pin) of writing, read of writing, read end (16,17 pin) and IC6 of single-chip microcomputer joins.When the A13 of single-chip microcomputer provided low level, single-chip microcomputer can read or write data message in random asccess memory.

Referring to Fig. 1,4,6, described display circuit 2-5 comprises gating circuit and the display module VFD that is barricaded as by four NAND gate IC7, and the address date line AD0～AD7 of described single-chip microcomputer and the corresponding interface of display module VFD are joined; Write, read to hold RD, WR (16,17 pin) and the input of four NAND gate of single-chip microcomputer join, the sheet of single-chip microcomputer selects the output control terminal of control end A13 and four NAND gate to join, and the output of four NAND gate (6,8 pin) joins with the control end (5,6 pin) of writing, read of display module VFD; 4 pin of display apparatus module are to show reset terminal, and it holds (27 pin) to join with the RS of single-chip microcomputer IC4.When the chip selection signal A13 of single-chip microcomputer output was " 1 ", single-chip microcomputer can be sent reading and writing signal RD, WR into display module, and display module can be with video data (AD0～AD7) send into display module to show according to the control of this reading and writing signal.

Referring to Figure 10, display module VFD content displayed mainly comprises the date received 6 and time 7 of LSN 4, identity coding 5, identity coding.

Referring to Fig. 1,4,8, described keypad circuit 2-6 is connected on P1.4 and the P1.5 end (5 pin, 6 pin) of single-chip microcomputer IC4, keypad is provided with two button S1, S2, be respectively applied for turn over (UP) and under turn over (DOWN), click and turn over one page, press continuously, then roll shows, when pressing two keys simultaneously, date and time can be set.

Referring to Fig. 1,9, for the coded message that makes this monitor can be sent into the demonstration that the PC computer carries out user's particulars, be connected to a serial o controller 2-7 at serial data communication mouth RXD, the TXD of single-chip microcomputer IC4 (10,11 pin), IC8 device just, it can arrive PC with the data information transfer of this monitor identity coding under the control of single-chip microcomputer, PC can access the particulars of respective user according to this data message.

Referring to Fig. 1,7, to realize reporting to the police or some remote control (as: open and close radio station) function in order to utilize this monitor, this monitor as the output interface of carrying out signal, is exported two 8421 yards with two ends of P1.6, P1.7 (7,8 pin) in the single-chip microcomputer P1 mouth.Described switching value output circuit 2-8 is connected and composed by decoder IC9A and driver IC 10, the signal input part of decoder IC9A (2,3 pin) joins with P1.6, the P1.7 end of single-chip microcomputer, and the sheet of decoder IC9A selects the control end (1 pin) and the middle broken ends of fractured bone INT1 (13 pin) of single-chip microcomputer to join.When the sheet of single-chip microcomputer selects control end to provide useful signal DOS, then single-chip microcomputer can be sent into 8421 yards of certain control of correspondence to decoder, decoder IC9 is translated into a switching value (as Y0 or Y1 or Y2 or Y3) with these 8421 yards (as: 00 or 01 or 10 or 11) correspondences, and exports by the driving of driver IC 10.If controlled device can directly drive with the switching value signal, then Dui Ying drive output (as: OUT1) can directly be joined with controlled device, realizes remote control or warning function, if can not, available relay is realized as actuator.

The course of work of this monitor is: when a certain user in the net presses the PPT emission key speech of radio station or hand-held intercom, radio station or hand-held intercom be dual-tone multifrequency identity coding signal of emission automatically, receiving circuit is delivered to the decoding circuit decoding after receiving this dual-tone multifrequency identity coding signal, after decoding, become 8421 yards and send into single-chip microcomputer, Single Chip Microcomputer (SCM) system is according to control program, discern earlier, if identity coding, then information such as the date received of this yard and this yard correspondence and time are shown and store.In addition, this monitor is arranged to the user, if frequently press the PPT emission key, promptly is to report to the police, and this function is very favorable for injured dumb user.If single-chip microcomputer recognizes the identity coding that repeats continuously, promptly regard as warning, start squealer by the switching value output circuit then and report to the police, on display screen, also can see the identity coding that repeats simultaneously, thereby learn warning people's identity.The double-tone multi-frequency coding (as: 01#) that this monitor can also be set the keyboard emission of the hand-held intercom of several usefulness is remote signal, when launching certain double-tone multi-frequency coding remote signal with keyboard, single-chip microcomputer can identify this remote signal, and carries out remote control control by the corresponding executive circuit of switching value output circuit startup.

Claims

1, the user identity monitor of a kind of radio station or hand-held intercom communication network, it is characterized in that: it has the receiving circuit (2-1) of a double-tone multi-frequency coding signal, the decoding circuit of a double-tone multi-frequency coding signal (2-2) and the main scm managing system that the date and time and the identity coding of user's communication are shown in real time and store, this scm managing system is at least by single-chip microcomputer (2-3), address latch, random asccess memory (2-4), keypad circuit (2-6) and display circuit (2-5) connect and compose, and described receiving circuit (2-1) joins by the data input interface of described decoding circuit (2-2) with single-chip microcomputer.

2, the user identity monitor of radio station according to claim 1 or hand-held intercom communication network is characterized in that: be provided with a switching value output circuit (2-8) on the output interface of described single-chip microcomputer.

3, the user identity monitor of radio station according to claim 1 and 2 or hand-held intercom communication network is characterized in that: be connected to a serial o controller (2-7) on the serial data communication port of described single-chip microcomputer.