CN202443566U

CN202443566U - Wireless alarm terminal device

Info

Publication number: CN202443566U
Application number: CN 201220001472
Authority: CN
Inventors: 徐正伟; 蔡志勇; 戎昱
Original assignee: DAYA SCIENCE AND TECHNOLOGY Co Ltd SHANGHAI
Current assignee: DAYA SCIENCE AND TECHNOLOGY Co Ltd SHANGHAI
Priority date: 2012-01-04
Filing date: 2012-01-04
Publication date: 2012-09-19
Anticipated expiration: 2022-01-04

Abstract

The present utility model relates to a wireless alarm terminal device. The device comprises an alarm signal acquisition module and a wireless communication module connected with the alarm signal acquisition module, the alarm signal acquisition module is connected with each alarm sensor, the wireless communication module is also connected with an external wireless network, and the alarm signal acquisition module is an one-chip microcomputer. In the wireless alarm terminal device, the wireless communication module and the external wireless network can be used for giving an alarm to an alarm center or a user after an alarm signal sent by the alarm sensors is received by the one-chip microcomputer. The wireless alarm terminal device is simple in structure, reliability for realizing a method of sending and controlling a wireless alarm signal can be effectively enhanced, and the integral performance of products can be guaranteed. The method of sending and controlling the wireless alarm signal is low in costs and wide in application scope.

Description

The radio alarming end device

Technical field

The utility model relates to the wireless communication technique field, and particularly radio alarming device technique field specifically is meant a kind of radio alarming end device.

Background technology

Along with improving constantly of living standard, people are also increasingly high for the safety precaution demand of dwelling house or unit.Occur various security protection equipment on the market and satisfied this demand.Wherein, wireless alarm system is because its installation is simple, and it is accurate to report to the police, and performance is preferable, therefore extensively is received by the market.

Wireless alarm system is generally by four most of compositions, and one, the probe of sense object variation, like antitheft door magnetic, smoke detector, window infrared induction etc.; Two, realize mutual terminal wireless base; The terminal of three, reception information or command object action, the normally mobile phone in citizen's hand; Four, these equipment are connected to the 3G wireless network of net.Probe can be laid in any position as required, and through wireless signal connecting terminal wireless fixed telephone, realizes radio alarming.

But it is higher that the complex structure of existing radio alarming end device, its alerting signal transmit the control difficulty, causes the alarm failure rate higher thus, and reliability of products is difficult to effectively ensured.

The utility model content

The purpose of the utility model is to have overcome above-mentioned shortcoming of the prior art; A kind of radio alarming end device simple in structure is provided, has effectively promoted the reliability that alerting signal transmits, and then ensured the product overall performance; And radio alarming end device with low cost, as to have wide range of applications.

In order to realize above-mentioned purpose, the radio alarming end device of the utility model has following formation:

This radio alarming end device comprises alerting signal acquisition module and the wireless communication module that is connected this alerting signal acquisition module; Described alerting signal acquisition module connects each alarm sensor; Described wireless communication module also connects the external wireless network; Wherein, described alerting signal acquisition module is a single-chip microcomputer.

In this radio alarming end device; Described single-chip microcomputer comprises alerting signal receiving end and alarm signal output ends; Described alerting signal receiving end is communicated with each alarm sensor through wireless signal, and described alarm signal output ends connects described wireless communication module through the UART serial line interface.

In this radio alarming end device; Described radio alarming end device also comprises signal demodulation unit; The alerting signal receiving end of described single-chip microcomputer is the external interrupt mouth of single-chip microcomputer, and the alerting signal of described each alarm sensor connects the external interrupt mouth of described single-chip microcomputer through described signal demodulation unit.

In this radio alarming end device, described wireless communication module is the 3G wireless communication module, and described 3G wireless communication module also has 3G network signal transmitting and receiving end.

Adopted the radio alarming end device of this utility model; It comprises alerting signal acquisition module and the wireless communication module that is connected this alerting signal acquisition module; Described alerting signal acquisition module connects each alarm sensor; Described wireless communication module also connects the external wireless network, and wherein, described alerting signal acquisition module is a single-chip microcomputer; Thereby after single-chip microcomputer receives the alerting signal that alarm sensor sends, can report to the police to alarm center or user through described wireless communication module and external wireless network.The radio alarming end device of the utility model simple in structure; Effectively promoted in order to realize that wireless alarm signal transmits the reliability of the method for control; And then ensured the product overall performance, and the radio alarming end device of the utility model is with low cost, and range of application is also comparatively extensive.

Description of drawings

Fig. 1 is the structural representation of the radio alarming end device of the utility model.

Fig. 2 is that the radio alarming end device of the utility model realizes that wireless alarm signal transmits the flow chart of steps of control procedure.

Fig. 3 is the annexation synoptic diagram of the radio alarming end device of the utility model in the practical application.

Fig. 4 for wireless data in the practical application behind receiving demodulation with single-chip microcomputer external interrupt mouth (INT0) continuous be connected synoptic diagram.

Fig. 5 is the synoptic diagram of the single chip computer architecture in the radio alarming end device of the utility model in the practical application.

Fig. 6 is the state machine configuration messages key element synoptic diagram of main control unit in the single-chip microcomputer in the radio alarming end device of the utility model in the practical application.

Fig. 7 is that the radio alarming of the utility model in the practical application interrupts realizing that wireless alarm signal transmits reception and the parsing process flow diagram to wireless data in the externally middle fracture unit in the control procedure.

Embodiment

In order more to be expressly understood the technology contents of the utility model, the special following examples of lifting specify.

See also shown in Figure 1ly, be the structural representation of the radio alarming end device of the utility model.

In one embodiment; Described radio alarming end device comprises alerting signal acquisition module and the wireless communication module that is connected this alerting signal acquisition module; Described alerting signal acquisition module connects each alarm sensor; Described wireless communication module also connects the external wireless network, and wherein, described alerting signal acquisition module is a single-chip microcomputer.

Realize that based on the described radio alarming end device of this embodiment wireless alarm signal transmits the method for control, as shown in Figure 2, described method may further comprise the steps:

(10) described single-chip microcomputer receives the alerting signal that alarm sensor sends;

(20) described single-chip microcomputer is sent to described wireless communication module with described alerting signal;

(30) described wireless communication module is reported to the police to alarm center or user through the external wireless network.

In a kind of more preferably embodiment; Described single-chip microcomputer comprises alerting signal receiving end and alarm signal output ends; Described alerting signal receiving end is communicated with each alarm sensor through wireless signal, and described alarm signal output ends connects described wireless communication module through the UART serial line interface.

In based on this method that more preferably transmission of the described radio alarming end device realization of embodiment wireless alarm signal is controlled; Described step (10) single-chip microcomputer receives the alerting signal of sending from alarm sensor, is specially: the alerting signal receiving end of described single-chip microcomputer receives the alerting signal of sending from alarm sensor; And described step (20) single-chip microcomputer is sent to described wireless communication module with described alerting signal, and be specially: the alarm signal output ends of described single-chip microcomputer is sent to described wireless communication module through the UART serial line interface with described alerting signal.

More preferably in the embodiment, described wireless communication module is the 3G wireless communication module at another kind, and described 3G wireless communication module also has 3G network signal transmitting and receiving end.

In based on this method that more preferably transmission of the described radio alarming end device realization of embodiment wireless alarm signal is controlled; Described step (30) wireless communication module is reported to the police to alarm center or user through the external wireless network, is specially: the 3G network signal transmitting and receiving end of described 3G wireless communication module is reported to the police to alarm center or user through outside 3G network.

In a kind of further preferred embodiment; Described radio alarming end device also comprises signal demodulation unit; The alerting signal receiving end of described single-chip microcomputer is the external interrupt mouth of single-chip microcomputer, and the alerting signal of described each alarm sensor connects the external interrupt mouth of described single-chip microcomputer through described signal demodulation unit.

In the method for the described radio alarming end device realization wireless alarm signal transmission control based on this further preferred embodiment, described method is further comprising the steps of before in step (10):

(1) described signal demodulation unit receives from alarm sensor and sends the alerting signal with simplifying mode frame structure;

(2) the ASK sign indicating number alerting signal formed of described signal demodulation unit tool lead code that described alerting signal with simplifying mode frame structure is demodulated into and numeric data code;

(3) described signal demodulation unit is sent to described ASK sign indicating number alerting signal in the external interrupt mouth of described single-chip microcomputer.

Wherein, described simplifying mode frame structure comprises in proper order: the CMD command word of the Res ID sign indicating number of the identification code of 1 byte long, 5 byte longs, 2 byte longs and the verification of 1 byte long and.

In a kind of preferred embodiment, described single-chip microcomputer stores the stage condition information that receives, and described single-chip microcomputer operation has first timer and second timer, and described step (3) specifically may further comprise the steps:

(3-1) the external interrupt mouth of described single-chip microcomputer receives the upper edge interruption;

(3-2) described single-chip microcomputer is judged the current reception stage according to described reception stage condition information, if preamble-phase then gets into step (3-3), if data phase then gets into step (3-5);

(3-3) described single-chip microcomputer judges whether the time counting of first timer and second timer meets the preamble-phase state, if, then get into step (3-4), if not, then get into step (3-12);

(3-4) described single-chip microcomputer receives lead code, and is data phase with described reception stage condition information setting, and gets into step (3-12);

(3-5) described single-chip microcomputer judges whether the time counting of described second timer is 4 unit durations, if, then get into step (3-6), if not, then get into step (3-7);

(3-6) described single-chip microcomputer is judged the time counting of described first timer, if 1 unit duration then gets into step (3-8), if 3 unit durations then get into step (3-9), and if other unit duration then gets into step (3-7),

(3-7) described single-chip microcomputer is a data phase with described reception stage condition information setting, and gets into step (3-12);

(3-8) described single-chip microcomputer enters the wireless data set of queues with data 0, and receives, and gets into step (3-10) then;

(3-9) described single-chip microcomputer enters the wireless data set of queues with data 1, and receives, and gets into step (3-10) then;

(3-10) described single-chip microcomputer is judged whether described wireless data set of queues receives and is finished, if, then get into step (3-11), if not, then get into step (3-13);

(3-11) described single-chip microcomputer receives the described alerting signal that the simplifying mode frame structure is arranged, and is preamble-phase with described reception stage condition information setting, gets into step (3-12) then;

(3-12) described first timer of described single-chip microcomputer zero clearing and second timer;

(3-13) the described external interrupt mouth of described singlechip interruption.

In practical application, the radio alarming end device of the utility model, as shown in Figure 3, mainly can be divided into following two parts:

A. wireless senser alerting signal collecting part is through chip microcontroller.Adopting model is the single-chip microcomputer of W78E054, and it has Flash and the 256 byte RAM of 16K.

B. alerting signal is handled, then transmitted data and give the alarm center platform, send alarm bell and report to the police, or send note automatically and notify related personnel etc. with calling.This part is handled through the TD wireless communication module and realizes.

In sum, the related function of each module in the radio alarming end device in the utility model all only need adopt hardware device to be achieved, and does not relate to and do not rely on the internal control program of any equipment.

Wherein, single-chip microcomputer and TD wireless communication module are taked following communication modes:

1, hardware interface: pass through UART interface communication, the signal of use: TXD, RXD and GND between security protection module and the phone.

2. messaging parameter:

Communication mode: UART;

Baud rate: 9600;

Data bit: 8;

Position of rest: 1;

Parity checking: do not have.

3. protocol format:

Adopt character string forms, each command string finishes with 0x0D (promptly " r "), and as if not receiving that in 1.5 seconds the other side replys, then repeating transmission was once sent at most three times after order had been sent.

4. command content:

(1) pairing enables: this instruction enables the security protection module and gets into the pairing state.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

Reply:

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

When single-chip microcomputer in pairing during state, if when receiving effective unpaired message, will send following information to the TD module, and withdraw from the pairing state, get into alarm condition;

Command content: " r ",

" XXXXXXXXXXXX " representative sensor ID wherein; " SS " represent verification with, be that ID by 5 bytes adds up and forms, such as:

Sensor ID={ 0X01,0X02,0X03,0X04,0X05,0X01};

Verification and=0X01+0X02+0X03+0X04+0X05+0X01=0X10;

Unpaired message: " r ",

Specify: form for " XXXXXXXXXXXX " content, wherein the first five group " XX " is the ID coding of sensor, and first group is used for indicating producer, and the meaning of the 6th group " XX " representative is a sensor type; For example: sensor ID={ 0X01,0X02,0X03; 0X04,0X05,0X01}; The 6th byte 0X01 representes that sensor type is a magnetic; If sensor ID={ 0X01,0X02,0X03,0X04,0X06,0X07}; The 6th byte 0X07 representes that sensor is a telepilot.

(2) pairing is withdrawed from: when at the pairing state, use this instruction can make the security protection single-chip microcomputer withdraw from the pairing state, get into alarm condition.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

Reply:

Data direction: single-chip microcomputer → TD module;

Command content: " r ".

(3) deletion unpaired message, this instruction are that deletion is stored in the whole unpaired messages among the single-chip microcomputer EEPROM.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

Reply:

Data direction: single-chip microcomputer → TD module;

Command content: " r ".

(4) read unpaired message, this instruction is to obtain the whole unpaired messages that are stored among the single-chip microcomputer EEPROM.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

Reply:

Data direction: single-chip microcomputer → TD module;

Command content: " AT+YJTTOPAIR=CC, r ";

Wherein " CC " representes unpaired message quantity, and " XXXXXXXXXXXX " representes sensor ID; For example:

EEPROM has stored 2 unpaired messages:

ID1={0X01,0X02,0X03,0X04,0X05,0X01}；

ID2={0X01,0X02,0X03,0X04,0X06,0X01}；

Report content to be:

“AT+YJTTOPAIR=02,010203040501,010203040601\r”

When not having unpaired message among the EEPROM, then reply: " r ".

(5) warning message: the security protection single-chip microcomputer is reported to the police to phone, sends this information when triggering like door magnetic.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(6) low pressure alarming: the security protection single-chip microcomputer sends low pressure alarming to phone.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(7) heartbeat reports: the security protection single-chip microcomputer regularly sends heartbeat packet to phone.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(8) telepilot is set up defences, and uses a teleswitch will send this order when setting up defences.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(9) telepilot is withdrawn a garrison, and uses a teleswitch will send this order when withdrawing a garrison.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(10) telepilot SOS, the SOS that uses a teleswitch will send this order when reporting to the police.

Data direction: single-chip microcomputer → TD module;

Command content: " r ";

Wherein " XXXXXXXXXXXXSS " together " AT+YJTPAIR " instruction in meaning;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(11) the general frame format that reports.

Data direction: single-chip microcomputer → TD module;

Command content: " AT+YJTREPT=LLLL, r ";

" LLLL " expression length wherein, " XXXXXX ... " represent data, " SS " be to the verification of data and;

Reply:

Data direction: TD module → single-chip microcomputer;

Command content: "+r ".

(12) unpaired message of deletion.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

" XXXXXXXXXXXX " expression data wherein, " SS " be to the verification of data with;

Answer runs succeeded:

Data direction: single-chip microcomputer → TD module;

Command content: " r ".

(13) read single-chip microcomputer version number, this instruction is to obtain the single-chip microcomputer version number that is stored in the security protection single-chip microcomputer.

Data direction: TD module → single-chip microcomputer;

Command content: "+r ";

Reply:

Data direction: single-chip microcomputer → TD module;

Command content: " r ",

Such as, security protection single-chip microcomputer version number information is: V05.01-20110424 (V05.01-compilation time) reports content to be: " AT+YJTVER r ".

Single-chip microcomputer and telepilot, door magnetic, infrared, the cigarette sense, the communication modes of security protection class wireless sensers such as combustion gas adopts following ASK modulation system:

Emissive power: 10dbm ± 1dbm;

Receiving sensitivity: greater than-100dbm;

Carrier frequency: 433.92MHz ± 150KHz;

Transmission bit rate: 1200 ± 250bps;

Data mode: scale-of-two asynchronous serial mode;

Data 1 are made up of following 3T high level and 1T low level:

Data 0 are made up of following 1T high level and 3T low level:

Wherein, the time of T is 200 ± 40uS

Lead code is made up of following 1T high level and 31T low level:

As shown in Figure 4, wireless data links to each other with single-chip microcomputer external interrupt mouth (INT0) behind receiving demodulation.

The Wireless Data Protocol interface adopts simplifying mode frame structure as shown in the table:

Identification code	Res?ID	cmd	Verification with
				1	5	2	1

Table 1 simplifying mode frame structure

Wherein, identification code: 1 byte, identification frames structure are integrated pattern or simplifying mode; Res ID: equipment self numbering; CMD: command word, naming rule is as shown in table 2 below; Verification and: verification and=Res ID+cmd.

Table 2CMD naming rule such as following table

Single chip computer architecture is as shown in Figure 5, is made up of three subprograms, comprising:

Main control unit is as system call.

The serial port interrupt location is responsible for and the communicating by letter of TD module.

The reception and the parsing of sensor wireless data are responsible in external interrupt mouth unit.

Main control unit adopts the state machine structure, has non-to the sign indicating number state with to sign indicating number state two states.State machine is by 3 key elements, that is: message, function, state.

This main control unit and state machine are as shown in Figure 6: wherein, the generation of message comprises:

The pairing enable messages---be derived from the TD module, produce through the serial port interrupt location.

Message is withdrawed from pairing---and be derived from the TD module, produce through the serial port interrupt location.

Deletion pairing message---be derived from the TD module, produce through the serial port interrupt location.

Read pairing message---be derived from the TD module, produce through the serial port interrupt location.

Receive sensing data message---be derived from sensor wireless and send, produce through external interrupt mouth unit.

The function of function is:

FUN1---to the answer that runs succeeded of TD module: command content: " r ".

FUN2---whether the Res ID in the inspection sensing data, then deposits Res ID among the EEPROM in if do not have to crossing sign indicating number (whether existing at EEPROM).

FUN3---if whether the Res ID in the inspection sensing data have, resolves in sensing data CMD command word to crossing sign indicating number (whether existing at EEPROM) again, sends out related data information to the TD module then.

FUN4---delete the Res ID among the EEPROM.

FUN5---transmit the Res ID among the EEPROM to the TD module.

Wireless data links to each other with single-chip microcomputer external interrupt mouth (INT0) behind receiving demodulation, and INT0 is made as the upper edge and interrupts, and parse data, also needs the cooperation of two timers.Utilize timer 0 to measure the width of INT0 high level; Timer 2 is measured the width (INT0 high level width+INT0 low level width) of whole data bit, and so just can judge received sequence of levels is 0, and perhaps 1; Or lead code, and then obtain whole Frame.

Data 1 are made up of 3T high level as follows and 1T low level:

Data 0 are made up of 1T high level as follows and 3T low level:

Lead code is made up of 1T high level as follows and 3T low level:

The reception stage is divided into lead code stage and two stages of data phase, and reception and parsing process flow diagram to wireless data in the concrete externally middle fracture unit are as shown in Figure 7.

Adopted the radio alarming end device of this utility model; It comprises alerting signal acquisition module and the wireless communication module that is connected this alerting signal acquisition module; Described alerting signal acquisition module connects each alarm sensor; Described wireless communication module also connects the external wireless network, and wherein, described alerting signal acquisition module is a single-chip microcomputer.Adopt the realization wireless alarm signal of the utility model to transmit the method for control, after single-chip microcomputer receives the alerting signal that alarm sensor sends, can report to the police to alarm center or user through described wireless communication module and external wireless network.The radio alarming end device of the utility model simple in structure; Effectively promoted in order to realize that wireless alarm signal transmits the reliability of the method for control; And then ensured the product overall performance, and the radio alarming end device of the utility model is with low cost, and range of application is also comparatively extensive.

In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and the scope of the utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.

Claims

1. radio alarming end device; Described radio alarming end device comprises alerting signal acquisition module and the wireless communication module that is connected this alerting signal acquisition module; Described alerting signal acquisition module connects each alarm sensor; Described wireless communication module also connects the external wireless network, it is characterized in that, described alerting signal acquisition module is a single-chip microcomputer.

2. radio alarming end device according to claim 1; It is characterized in that; Described single-chip microcomputer comprises alerting signal receiving end and alarm signal output ends; Described alerting signal receiving end is communicated with each alarm sensor through wireless signal, and described alarm signal output ends connects described wireless communication module through the UART serial line interface.

3. radio alarming end device according to claim 1; It is characterized in that; Described radio alarming end device also comprises signal demodulation unit; The alerting signal receiving end of described single-chip microcomputer is the external interrupt mouth of single-chip microcomputer, and the alerting signal of described each alarm sensor connects the external interrupt mouth of described single-chip microcomputer through described signal demodulation unit.

4. according to each described radio alarming end device in the claim 1 to 3, it is characterized in that described wireless communication module is the 3G wireless communication module, described 3G wireless communication module also has 3G network signal transmitting and receiving end.