CN201876968U

CN201876968U - Security device

Info

Publication number: CN201876968U
Application number: CN2010206207224U
Authority: CN
Inventors: 方彧
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-24
Filing date: 2010-11-24
Publication date: 2011-06-22
Anticipated expiration: 2020-11-24

Abstract

The utility model relates to a security device, which comprises a transmitter and a receiver. The transmitter transmits infrared rays of a certain frequency, the receiver receives the infrared rays transmitted by the transmitter, and the transmitter and the receiver are mounted in a monitoring area. The transmitter is used for continuously transmitting the infrared rays of a certain frequency, the receiver is used for continuously receiving the infrared rays transmitted by the transmitter, when external foreign matters intrude the monitoring area, the receiver cannot normally receive corresponding infrared signals, thereby giving out alarm to the external, and the security device is higher in antitheft performance.

Description

A kind of security protection equipment

Technical field

The utility model relates to a kind of security protection equipment.

Background technology

Early stage security protection equipment is generally mechanical type, and as antitheft door, burglary-resisting window etc., it is low to take precautions against coefficient, poor stability, and application space is also more and more littler.Along with development of science and technology, people have developed as a series of automatic alarm systems such as door magnetic-type, touch, radar monitorings, yet the anti-theft and the intelligent level of most systems are all lower at present.

The utility model content

The security protection equipment that provides a kind of anti-theft strong is provided the purpose of this utility model.

For achieving the above object, a kind of security protection equipment that the utility model provides, this equipment is made up of transmitter and receiver, the infrared ray of transmitter emission certain frequency, the infrared ray that the receiver receiver/transmitter is sent, transmitter and receiver is installed in the guarded region, described transmitter comprises main control chip, main control chip adopts the AT89C2051 chip, the end of the P3.5 pin connecting resistance R1 of AT89C2051 chip, the base stage of another termination triode of resistance R 1, the collector of triode links to each other with the negative pole of infrared-emitting diode, the positive pole of infrared-emitting diode connects+the 5V power supply by resistance R 2, and button SW1--SW9 meets the P1.7 of AT89C2051 chip respectively, P1.6, P1.5, P1.4, P1.3, P1.2, P1.1, P1.0, the P3.7 pin.

The infrared ray of the emission certain frequency that the utility model does not stop by transmitter, and by the receiver infrared ray launched of receiver/transmitter always, when extraneous foreign matter was swarmed into guarded region, receiver then can't normally receive corresponding infrared signal, report to the police to the external world, anti-theft is stronger.

Description of drawings

Fig. 1,2 is respectively a working state schematic representation of the present utility model;

Fig. 3 is the circuit theory diagrams of transmitter in the utility model;

Fig. 4 is the functional block diagram of receiver in the utility model;

Fig. 5 is the circuit theory diagrams of infrared receiving circuit in the utility model.

Embodiment

A kind of security protection equipment, this equipment is made up of transmitter 10 and receiver 20, the infrared ray of transmitter 10 emission certain frequencies, the infrared ray that receiver 20 receiver/transmitters 10 are sent, transmitter 10 and receiver 20 are installed in the guarded region, during operate as normal, the infrared ray of the emission certain frequency that transmitter 10 does not stop, receiver 20 receives the infrared ray of characteristic frequency always, in case foreign matter 30 is arranged to be swarmed in the guarded region, the infrared ray that transmitter 10 sends will be blocked, receiver 20 can't receive corresponding infrared signal, and receiver 20 sends the caution voice suggestion immediately, the caution light signal, dial emergency numbers and notify the related personnel, intelligent level is higher, anti-theft is strong, as Fig. 1, shown in 2.

Described transmitter 10 comprises main control chip, and main control chip adopts the AT89C2051 chip, and it has the Flash of 2kB, the RAM of 128B, and is little to the operating voltage requirement, can adopt a joint 6V dry cell power supply, and crystal oscillator frequency fosc is 24MHz.9 button SW1-SW9 connect P1.7, P1.6, P1.5, P1.4, P1.3, P1.2, P1.1, P1.0, the P3.7 pin of AT89C2051 chip respectively.The end of the P3.5 pin connecting resistance R1 of AT89C2051 chip, the base stage of another termination triode of resistance R 1, the collector of triode links to each other with the negative pole of SE303 infrared-emitting diode, the positive pole of SE303 infrared-emitting diode connects+the 5V power supply by resistance R 2, when P3.5 is 1, the triode conducting, the train of impulses of SE303 infrared-emitting diode emission 38kHz; Otherwise triode ends, and the SE303 infrared-emitting diode is not launched.

Described receiver 20 comprises single-chip microcomputer 21, single-chip microcomputer 21 adopts the Atmega8L chip, the I/O interface of Atmega8L chip connects Liquid Crystal Module 22, power amplifier 23, led circuit 24, infrared receiving circuit 25, voice control circuit 26, keyboard circuit 27 and automatic dial-up circuit 28 respectively, and the reset pin of Atmega8L chip connects reset circuit 29.Described ATmega8L chip is based on 8 CMOS microcontrollers of low-power consumption of the AVR risc architecture of enhancing, contains the Flash storer, and the Flash storer is attached in the consumer products, can programme at any time, is convenient to Product Renewal.The ATmega8L chip has advanced instruction set and single clock cycle instruction time, and its data throughput is up to 1MIPS/MHz, thus the contradiction of alleviation system between power consumption and processing speed.The ATmega8L chip includes 512 byte EEPROM, 1KB SRAM, 32 general purpose I/O port lines, 32 general purpose working registers, 3 timer/counters flexibly with comparison pattern, the sheet inside/outside interrupts, serial USART able to programme, the two-wire serial interface of byte-oriented, 10 6 road A/D converters, programmable watchdog timer with sheet internal oscillator, 1 SPI serial port.

Described infrared receiving circuit 25 comprises the HS0038 infrared receiving terminal, the 3rd pin of HS0038 infrared receiving terminal connects the PBO pin of Atmega8L chip, the 1st pin ground connection of HS0038 infrared receiving terminal, capacitor C 1 be connected on after resistance R 1 is connected+5V power supply and the 1st pin between, the 2nd pin of HS0038 infrared receiving terminal connects+the 5V power supply.The frequency that the HS0038 infrared receiving terminal receives infrared signal is 38KHz, cycles 26 μ s, simultaneously to signal amplify, detection, shaping, obtain the coded signal of Transistor-Transistor Logic level, give single-chip microcomputer 21 again, through single-chip microcomputer 21 decodings and execution, effective reception and transmission range of SE303 infrared transmitting tube and HS0038 infrared receiving terminal can reach 35 meters.

Described voice control circuit 26 comprises master chip, master chip adopts the ISD4002 chip, sound directly is stored in after sampling in the flash memory in the ISD4002 chip, need not through A/D conversion and compression, avoided the error of A/D conversion, voice be can reduce truly, naturally, general solid recording circuit quantizes and compression causes quantizing noise and metallic sound avoided.According to voice control circuit 26, the user can be by the button of operation receiver 20, and the typing caution sound is so that play when having foreign matter 30 to swarm into, with the announcement of warning.Described automatic dial-up circuit 28 adopts MT8888 multisound and double-frequency signal generator, and the output terminal of MT8888 multisound and double-frequency signal generator is connected with telephone wire after amplifying circuit amplifies.

Be further described below in conjunction with Fig. 1,2,3,4,5 pairs of the utility model.

Described transmitter 10 has 1 power switch, 9 password options buttons, 1 standby indicating lamp and 1 operate as normal pilot lamp, wherein, and 9 corresponding button SW1--SW9 of password options button difference.During use, after the user presses power switch, transmitter 10 is in holding state, this moment, the standby indicating lamp of transmitter 10 was bright, the prompting user presses certain password options button, select the outwards ultrared frequency of emission of transmitter 10, when the user selects a password options button, such as " 1 ", transmitter 10 will continue the emission infrared ray to certain direction, turning off standby indication simultaneously with " 1 " corresponding frequency, open the operate as normal pilot lamp, transmitter 10 is in normal operating conditions, if end-of-job, the power supply of directly closing transmitter 10 gets final product.As seen, the infrared frequency that this equipment sent is set by user oneself, and security performance is strong.

Described receiver 20 comprises 1 power switch, " 0-9 " 10 numerical keys, " * " key, " # " key, " affirmation " key and " cancellation " key.After the user pressed power switch, whether receiver 20 prompting users carry out caution sound was recorded with emergency numbers and prestores, and the prompting user deposits emergency numbers in internal memory on request.After recording the corresponding warning sound and setting infrared frequency, enter the check and correction pattern, in the check and correction pattern, the user adjusts receiver 20 directions, make receiver 20 can receive the infrared ray that transmitter 10 sends, the fixed position enters normal operating conditions then, and whether detection in real time has the infrared ray of setpoint frequency, if do not have, send caution sound immediately, light warning light, and put through the emergency telephone notification related personnel, intelligent level is higher.

In sum, core of the present utility model is to continue by transmitter 10 infrared ray of emission certain frequency, and the infrared ray of being launched by receiver 20 receiver/transmitters 10, when extraneous foreign matter 30 is swarmed into guarded region, 20 of receivers can't normally receive corresponding infrared signal, report to the police to the external world, anti-theft is stronger.

Claims

1. security protection equipment, it is characterized in that: this equipment is made up of transmitter (10) and receiver (20), the infrared ray of transmitter (10) emission certain frequency, the infrared ray that receiver (20) receiver/transmitter (10) is sent, transmitter (10) and receiver (20) are installed in the guarded region, described transmitter (10) comprises main control chip, main control chip adopts the AT89C2051 chip, the end of the P3.5 pin connecting resistance R1 of AT89C2051 chip, the base stage of another termination triode of resistance R 1, the collector of triode links to each other with the negative pole of infrared-emitting diode, the positive pole of infrared-emitting diode connects+the 5V power supply by resistance R 2, and button SW1--SW9 meets the P1.7 of AT89C2051 chip respectively, P1.6, P1.5, P1.4, P1.3, P1.2, P1.1, P1.0, the P3.7 pin.

2. security protection equipment according to claim 1, it is characterized in that: described receiver (20) comprises single-chip microcomputer (21), single-chip microcomputer (21) adopts the Atmega8L chip, the I/O interface of Atmega8L chip connects Liquid Crystal Module (22), power amplifier (23), led circuit (24), infrared receiving circuit (25), voice control circuit (26), keyboard circuit (27) and automatic dial-up circuit (28) respectively, and the reset pin of Atmega8L chip connects reset circuit (29).

3. security protection equipment according to claim 2, it is characterized in that: described infrared receiving circuit (25) comprises the HS0038 infrared receiving terminal, the 3rd pin of HS0038 infrared receiving terminal connects the PBO pin of Atmega8L chip, the 1st pin ground connection of HS0038 infrared receiving terminal, capacitor C 1 be connected on after resistance R 1 is connected+5V power supply and the 1st pin between, the 2nd pin of HS0038 infrared receiving terminal connects+the 5V power supply.

4. according to claim 1 or 3 described security protection equipment, it is characterized in that: effective reception and transmission range of described infrared-emitting diode and HS0038 infrared receiving terminal is 35 meters.

5. security protection equipment according to claim 2, it is characterized in that: described voice control circuit (26) comprises master chip, master chip adopts the ISD4002 chip, described automatic dial-up circuit (28) adopts MT8888 multisound and double-frequency signal generator, and the output terminal of MT8888 multisound and double-frequency signal generator is connected with telephone wire after amplifying circuit amplifies.