CN2662383Y

CN2662383Y - GPRS fire fighting wireless network subscriber alarm

Info

Publication number: CN2662383Y
Application number: CN 03279609
Authority: CN
Inventors: 李君超
Original assignee: BEIJING ZHONGDAYONGTAI TECHNOLOGY Co Ltd
Current assignee: BEIJING ZHONGDAYONGTAI TECHNOLOGY Co Ltd
Priority date: 2003-09-15
Filing date: 2003-09-15
Publication date: 2004-12-08
Anticipated expiration: 2013-09-15

Abstract

The utility model belongs to a fire-fighting alarm device, particularly a subscriber alarm which has various sensor interfaces and makes use of the GPRS wireless communication network to send fire warning information. The GPRS fire-fighting wireless network subscriber alarm comprises a single chip microcomputer system module [1], a GPRS communication module [2], a display [3], a small keyboard [4] and a set of sensor interface circuits [5]. The utility model is characterized in that the set of sensor interface circuits [5] comprises digital quantity interface [51] for transmitting signals of a relay switch or TTL electrical level, etc., an analogue quantity interface [52] for transmitting signals of current or voltage, etc., a wireless signal interface [53] and an asynchronous signal interface [54] for transmitting asynchronous communication data. The utility model can be matched with various and multi-way fire hazard seniors, which enlarges the monitoring range of fire disaster and enhances the monitoring reliability.

Description

GPRS fire-fighting wireless network user alarm

Technical field

The utility model belongs to a kind of fire protection warning device, and particularly a kind of multiple sensors interface that has utilizes the subscriber alarm device of GPRS radio communication network transmission fire alarm information.

Background technology

Utilize GPRS (General Packet Radio Service, GPRS) subscriber alarm device of radio communication network transmission fire alarm information has real-time online, report to the police in time, two-way communication, can supervise advantages such as controlled, but the sensor interface type of existing this type of alarm is more single, can not be applicable to the occasion that needs to use multiple sensors.

The utility model content

The purpose of this utility model is: a kind of multiple sensors interface that has is provided, can with the supporting use of multiple sensors, utilize the subscriber alarm device of GPRS radio communication network transmission fire alarm information.

The technical solution of the utility model is: GPRS fire-fighting wireless network user alarm, comprise the Single Chip Microcomputer (SCM) system module, the GPRS communication module, display, keypad and one group of sensor interface circuitry is characterized in that: described one group of sensor interface circuitry comprises: transmit the digital quantity interface of signals such as relay switch or Transistor-Transistor Logic level, the analog quantity interface of signals such as transmission curtage, wireless signal interface, and the asynchronous signal interface that transmits the asynchronous communication data.

Use the utility model and can connect multiple, multichannel fire sensor, make the fire hazard monitoring expanded range, and improved the reliability of monitoring.

Description of drawings

Accompanying drawing 1 is a theory diagram of the present utility model;

Accompanying drawing 2 is the electrical schematic diagram of digital quantity interface and analog quantity interface among the utility model embodiment 1;

Accompanying drawing 3 is the electrical schematic diagram of wireless signal interface among the utility model embodiment 1;

Accompanying drawing 4 is the electrical schematic diagram of asynchronous signal interface among the utility model embodiment 1;

Accompanying drawing 5 is the electrical schematic diagram of clock module and memory among the utility model embodiment 2.

Embodiment

Embodiment 1: referring to accompanying drawing 1, GPRS fire-fighting wireless network user alarm, comprise Single Chip Microcomputer (SCM) system module 1, GPRS communication module 2, display 3, keypad 4 and one group of sensor interface circuitry 5, described one group of sensor interface circuitry 5 comprises: the digital quantity interface 51 that transmits signals such as relay switch or Transistor-Transistor Logic level, the analog quantity interface 52 of signals such as transmission curtage, wireless signal interface 53, and the asynchronous signal interface 54 that transmits the asynchronous communication data.

Referring to accompanying drawing 2, described digital quantity interface 51 is by 2 digital quantity signal plug J1, J2 and 1 74HC573 latch chip U3 form, described digital quantity signal socket J1, J2 introduces 8 road digital quantity signal IN0～IN7, deliver to 1D～8D end of described latch chip U3, deliver to described single-chip microcomputer 1 bus B US0～BUS7 by 1Q～8Q end of described latch chip U3 again;

Referring to accompanying drawing 2, described analog quantity interface 52 is by 2 analog signals socket J3, J4, and 1 current/voltage-converted socket J5, and 1 8591A/D conversion chip U7 forms; Be connected to 4 resistance R 7 between described current/voltage-converted socket J5 and the earth potential, R9～R11 can be converted to voltage signal with 4 road current signals; Described analog signals socket J3, J4 and described current/voltage-converted socket J5 introduce 4 road analog signals M0～M3, deliver to AIN0～AIN3 end of described A/D conversion chip U7, deliver to described single-chip microcomputer 1 by the SDA end of described A/D conversion chip U7 again;

Referring to accompanying drawing 3, described wireless signal interface 53 is made up of 1 wireless signal socket J6 and 1 74HC573 latch chip U1, described wireless signal socket J6 adopts the binary coding mode to introduce 16 road wireless signal RFD1～RFD5, deliver to 3D～8D end of described latch chip U1, deliver to described single-chip microcomputer 1 bus B US0～BUS7 by 1Q～8Q end of described latch chip U3 again;

Referring to accompanying drawing 4, described asynchronous signal interface 54 comprises 4 couples of asynchronous communication socket J7～J14, and being plugged on 232,422 or 485 communication Protocol Conversion modules on described asynchronous communication socket J7～J14,4 tunnel asynchronous datas after conversion are delivered to the EXD0～EXD2 bus of described single-chip microcomputer 1.

Embodiment 2, referring to accompanying drawing 1, in order to store and to inquire about alert data, in described GPRS fire-fighting wireless network user alarm, also comprise the memory 7 of still preserving data after 1

clock module

6 and 1 power down, described memory 7 is under the control of described Single Chip Microcomputer (SCM) system module 1, the time data that alert data on the described single-chip microcomputer 1 bus B US0～BUS7 of timing cycle index and described clock module 6 provide, and can be read by described Single Chip Microcomputer (SCM) system module 1, on described display 3, show or transmit through described GPRS communication module 2.

Referring to accompanying drawing 5, described clock module 6 is 1 DS12C887 clock chip U9, and it delivers to described single-chip microcomputer 1 bus B US0～BUS7 with time data by its AD0～AD7 end;

Described memory 7 is 1 DS12345 memory chip U6, its DQ0～DQ7 is connected to described single-chip microcomputer 1 bus B US0～BUS7, A0～A15 is connected to the address bus AD0～AD15 of described single-chip microcomputer 1, and read-write control end OE and WE are connected to the read write command end RD and the WR of Single Chip Microcomputer (SCM) system module 1 respectively.

Claims

1, a kind of GPRS fire-fighting wireless network user alarm, comprise Single Chip Microcomputer (SCM) system module [1], GPRS communication module [2], display [3], keypad [4] and one group of sensor interface circuitry [5] is characterized in that: described one group of sensor interface circuitry [5] comprising: transmit the digital quantity interface [51] of signals such as relay switch or Transistor-Transistor Logic level, the analog quantity interface [52] of signals such as transmission curtage, wireless signal interface [53], and the asynchronous signal interface [54] that transmits the asynchronous communication data.

2, GPRS fire-fighting wireless network user alarm according to claim 1 is characterized in that:

Described digital quantity interface [51] is by 2 digital quantity signal plug [J1, J2] and 1 74HC573 latch chip [U3] composition, described digital quantity signal socket [J1, J2] introducing 8 road digital quantity signals [IN0～IN7], deliver to the 1D～8D end of described latch chip [U3], deliver to described single-chip microcomputer [1] bus [BUS0～BUS7] by the 1Q～8Q end of described latch chip [U3] again;

Described analog quantity interface [52] is by 2 analog signals sockets [J3, J4], 1 current/voltage-converted socket [J5], and 1 8591A/D conversion chip [U7] is formed; Be connected to 4 resistance [R7, R9～R11] between described current/voltage-converted socket [J5] and the earth potential, 4 road current signals can be converted to voltage signal; Described analog signals socket [J3, J4] and described current/voltage-converted socket [J5] introducing 4 road analog signalses [M0～M3], deliver to the AIN0～AIN3 end of described A/D conversion chip [U7], deliver to described single-chip microcomputer [1] by the SDA end of described A/D conversion chip [U7] again;

Described wireless signal interface [53] is made up of 1 wireless signal socket [J6] and 1 74HC573 latch chip [U1], described wireless signal socket [J6] adopts the binary coding mode to introduce 16 road wireless signals [RFD1～RFD5], deliver to the 3D～8D end of described latch chip [U1], deliver to described single-chip microcomputer [1] bus [BUS0～BUS7] by the 1Q～8Q end of described latch chip [U3] again;

Described asynchronous signal interface [54] comprises 4 pairs of asynchronous communication sockets [J7～J14], and being plugged on 232,422 or 485 communication Protocol Conversion modules on the described asynchronous communication socket [J7～J14], 4 tunnel asynchronous datas after conversion are delivered to the EXD0～EXD2 bus of described single-chip microcomputer [1].

3, GPRS fire-fighting wireless network user alarm according to claim 1 and 2, it is characterized in that: further comprising the memory [7] of still preserving data after 1 clock module [6] and 1 power down, described memory [7] is under the control of described Single Chip Microcomputer (SCM) system module [1], the time data that alert data on the timing described single-chip microcomputer of cycle index [1] bus [BUS0～BUS7] and described clock module [6] provide, and can be read by described Single Chip Microcomputer (SCM) system module [1], transmit in the last demonstration of described display [3] or through described GPRS communication module [2].

4, GPRS fire-fighting wireless network user alarm according to claim 3 is characterized in that:

Described clock module [6] is 1 DS12C887 clock chip [U9], and it delivers to described single-chip microcomputer [1] bus [BUS0～BUS7] with time data by its AD0～AD7 end;

Described memory [7] is 1 DS12345 memory chip [U6], its DQ0～DQ7 is connected to described single-chip microcomputer [1] bus [BUS0～BUS7], A0～A15 is connected to the address bus AD0～AD15 of described single-chip microcomputer [1], and read-write control end OE and WE are connected to the read write command end RD and the WR of Single Chip Microcomputer (SCM) system module [1] respectively.