CN2802607Y - Radio gas detecting instrument - Google Patents

Radio gas detecting instrument Download PDF

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Publication number
CN2802607Y
CN2802607Y CN 200520091037 CN200520091037U CN2802607Y CN 2802607 Y CN2802607 Y CN 2802607Y CN 200520091037 CN200520091037 CN 200520091037 CN 200520091037 U CN200520091037 U CN 200520091037U CN 2802607 Y CN2802607 Y CN 2802607Y
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CN
China
Prior art keywords
pin
circuit
meet
ground connection
power supply
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Expired - Fee Related
Application number
CN 200520091037
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Chinese (zh)
Inventor
付华
尹丽娜
徐耀松
孙红鸽
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Liaoning Technical University
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Liaoning Technical University
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Priority to CN 200520091037 priority Critical patent/CN2802607Y/en
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Publication of CN2802607Y publication Critical patent/CN2802607Y/en
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Abstract

The utility model relates to a wireless gas detecting instrument which belongs to a gas detecting device. The wireless gas detecting instrument is composed of a keyboard circuit (3), a digital display circuit (4), a calendar time circuit (6), an alarm circuit (7) and a power supply circuit (8) and is characterized in that a CPU circuit (2), a detecting circuit (1) and a communication circuit (5) are arranged in a system. Due to the adoption of the advanced Bluetooth technology, gas detection has the advantages of flexibility, quickness, strong interference immunity, high precision, stability, reliability, good sealing performance and small size, the wireless gas detecting instrument can communicate with a host conveniently and the utility model has the advantages of low cost and convenient operation.

Description

The wireless gas detector
Technical field
The utility model belongs to gas detecting device, particularly a kind of wireless gas detector.
Technical background
A lot of accidents in the mine disaster are owing to gas explosion causes, therefore, the detection of gas density is even more important.At present, most of gas detection equipments have only detection, warning and writing function, lack data-transformation facility, particularly lack have flexibly, fast, antijamming capability is strong, precision is high, reliable and stable, good seal and the little Bluetooth technology of volume.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of Bluetooth technology of application of advanced is provided, and solves data-transformation facility, and has intelligent wireless gas detector.
The technical scheme that the utility model technical solution problem adopts is: a kind of wireless gas detector of being made up of keyboard circuit, digital display circuit, calendar hour hands circuit, warning circuit and power circuit is characterized in being provided with central processing unit circuit, testing circuit and telecommunication circuit in system; The central processing unit circuit is by single-chip microcomputer U 3Form; U 32 pin meet single supply amplifier U in the testing circuit 16 pin, 3,4,5 pin meet the clock chip U in the calendar clock circuit 27,6,5 pin, the resistance R in the 6 pin circuit taking alarm 2One end, 7,8,9 pin meet red, green, blue optical diode D respectively 1, D 2, D 3One end, 11 pin connect the 3.3V power supply, 12 pin ground connection, 19 pin meet the triode Q in the power circuit 4Base stage, 20 pin connect voltage stabilizing diode ZENER, resistance R 10An end and triode Q 2Collector: 21 pin meet low-voltage detection chip U 61 pin, 22,25,26 pin are connected the Bluetooth chip OR in the letter circuit 3, A 5, B 5Pin, 31 pin ground connection, 32 pin connect the 3.3V power supply, and 34,35 pin meet the liquid crystal display U in the digital indicator circuit 43,2 pin, 37～40 pin meet the button K in the keyboard circuit respectively 5～K 2One end.
The resistance bridge RB that testing circuit is made up of catalysis element, single supply amplifier U 1, resistance R 1And capacitor C 7, C 8Form, RB is by resistance R 15, R 16, carrier catalyst element r 1Pure carrier element r 2Form; U 13 pin meet R among the RB 15, R 16One end, 2 pin meet the r among the RB 1, r 2One end, 8,1 pin meets R respectively 1Two ends, 4,5 pin ground connection, 7 pin meet C 7, C 8One end and+the 3.3V power supply, C 7, C 8Other end ground connection, the r among the RB 1, R 15Another termination+3.3V power supply, r 2, R 16Other end ground connection.
Telecommunication circuit is by Bluetooth chip U 5, capacitor C 5, C 6Form with antenna ANTENNA; U 5OC 4, OC 6, OC 2Pin meets C 5, C 6One end and+the 3.3V power supply, B 3, OR 1, OR 2, T 1, T 3Pin meets C 5, C 6The other end and ground, T 2Pin meets ANTENNA.
The beneficial effects of the utility model are: owing to adopt advanced Bluetooth technology, gas is detected have flexibly, fast, strong interference immunity, precision height, reliable and stable, good seal and the little advantage of volume; Can be easily and main-machine communication; Cost is low, and is easy to use.
Description of drawings
Specify with enforcement below in conjunction with accompanying drawing.
Fig. 1 shows wireless gas detector circuit theory diagrams.
The power circuit principle figure of Fig. 2 diagrammatic sketch 1.
The FB(flow block) of the Bluetooth communication software of Fig. 3 diagrammatic sketch 1.
Among the figure, the 1-testing circuit; 2-central processing unit circuit; The 3-keyboard circuit; The 4-digital display circuit; The 5-telecommunication circuit; 6-calendar clock circuit; The 7-warning circuit; The 8-power circuit; U 1-single supply amplifier; U 2-clock chip; U 3-single-chip microcomputer; U 4-LCD; U 5-Bluetooth chip; U 6-low pressure detection chip; U 7-double D trigger; U 8-linear stabilized voltage supply; The RB-resistance bridge; r 1-carrier catalyst element; r 2-pure carrier element; K 1-switch key; K 2～K 5-button; The ANTENNA-electric wire; The XTAL-crystal oscillator; The LS-sonic alarm; Q 1～Q 4-triode; D 1, D 2, D 3-red, green, blue optical diode; The ZENER-voltage stabilizing diode; BT 1, BT 2-battery; R 1～R 16-resistance; C 1～C 8-electric capacity
Embodiment
With reference to accompanying drawing 1, a kind of wireless gas detector of being made up of keyboard circuit 3, digital display circuit 4, calendar hour hands circuit 6, warning circuit 7 and power circuit 8 is characterized in being provided with central processing unit circuit 2, testing circuit 1 and telecommunication circuit 5 in system; Central processing unit circuit 2 is by single-chip microcomputer U 3Form; U 32 pin meet single supply amplifier U in the testing circuit 1 16 pin, 3,4,5 pin meet the clock chip U in the calendar clock circuit 6 27,6,5 pin, the resistance R in the 6 pin circuit 7 taking alarm 2One end, 7,8,9 pin meet red, green, blue optical diode D respectively 1, D 2, D 3One end, 11 pin connect the 3.3V power supply, 12 pin ground connection, 19 pin meet the triode Q in the power circuit 8 4Base stage, 20 pin connect voltage stabilizing diode ZENER, resistance R 10An end and triode Q 2Collector, 21 pin meet low-voltage detection chip U 61 pin, 22,25,26 pin are connected the Bluetooth chip OR in the letter circuit 3, A 5, B 5Pin, 31 pin ground connection, 32 pin connect the 3.3V power supply, and 34,35 pin meet the liquid crystal display U in the digital indicator circuit 4 43,2 pin, 37～40 pin meet the button K in the keyboard circuit 3 respectively 5～K 2One end.
The resistance bridge RB that testing circuit 1 is made up of catalysis element, single supply amplifier U 1, resistance R 1And capacitor C 7, C 8Form, RB is by resistance R 15, R 16, carrier catalyst element r 1Pure carrier element r 2Form; U 13 pin meet R among the RB 15, R 16One end, 2 pin meet the r among the RB 1, r 2One end, 8,1 pin meets R respectively 1Two ends, 4,5 pin ground connection, 7 pin meet C 7, C 8One end and+the 3.3V power supply, C 7, C 8Other end ground connection, the r among the RB 1, R 15Another termination+3.3V power supply, r 2, R 16Other end ground connection.
Telecommunication circuit 5 is by Bluetooth chip U 5, capacitor C 5, C 6Form with antenna ANTENNA; U 5OC 4, OC 6, OC 2Pin meets C 5, C 6One end and+the 3.3V power supply, B 3, OR 1, OR 2, T 1, T 3Pin meets C 5, C 6The other end and ground, T 2Pin meets ANTENNA.
Keyboard circuit 3 is by button K 2～K 5And resistance R 4～R 7Form; K 2～K 5Another termination R 4～R 7An end, R 4～R 7Another termination+3.3V power supply.
Digital display circuit 4 is by LCD U 4Form; U 41 pin connect+the 3.3V power supply 4 pin ground connection.
Calendar clock circuit 6 is by clock chip U 2, battery BT 2, crystal oscillator XTAL and capacitor C 1, C 2Form; U 21 pin meet BT 2Positive pole, 2 pin meet C 1, XTAL one end, C 1Another termination BT 2Negative pole and ground, 3 pin meet the XTAL other end and C 2One end, C 2Other end ground connection, 4,8 pin ground connection.
Warning circuit 7 is by sonic alarm LS, triode Q 1, red, green, blue optical diode D 1, D 2, D 3And resistance R 2, R 3Form; One termination of LS+3.3V power supply, another termination Q 1Collector; Q 1Base stage meet R 2The other end, grounded emitter; D 1～D 3Another termination R 3One end, R 3Other end ground connection.
Power circuit 8 (seeing accompanying drawing 2) is by low pressure detection chip U 6, double D trigger U 7, linear stabilized voltage supply U 8, triode Q 2～Q 4, battery BT 1, voltage stabilizing diode ZENER, switch key K 1, capacitor C 3～C 5And resistance R 8～R 14Form; U 62 pin ground connection, 3 pin meet BT 1Positive pole, C 3One end, U 81 pin, R 10The other end, R 12, R 13, K 1, C 5One end, C 3Other end ground connection, BT 1Minus earth; U 71 pin meet R 14One end, 4 pin meet R 11One end, R 12The other end and Q 4Collector, 3,5 pin meet R 11The other end and ground.6 pin meet C 5, K 1The other end and R 9, R 8One end, R 9Other end ground connection; Q 2Base stage meet R 8The other end, emitter connect the ZENER other end and ground; Q 4Grounded emitter; Q 3Base stage meet R 14The other end, collector meets R 13The other end and U 83 pin, grounded emitter; U 82 pin ground connection, 5 pin meet C 4One end, output 3.3V voltage, C 4Other end ground connection.
The flow process of Bluetooth communication software as shown in Figure 3, the messaging parameter of at first setting up serial ports according to the HCI of bluetooth standard instruction, is finished local bluetooth device by serial ports and is carried out initialization then, the inquiry of remote equipment be connected single-chip microcomputer U after the successful connection 3The beginning data acquisition packs the data to the ACL packet then and sends to terminal.

Claims (3)

1, a kind of wireless gas detector, by the wireless gas detector that keyboard circuit (3), digital display circuit (4), calendar hour hands circuit (6), warning circuit (7) and power circuit (8) are formed, it is characterized in that in system, being provided with central processing unit circuit (2), testing circuit (1) and telecommunication circuit (5); Central processing unit circuit (2) is by single-chip microcomputer U 3Form; U 32 pin meet single supply amplifier U in the testing circuit (1) 16 pin, 3,4,5 pin meet the clock chip U in the calendar clock circuit (6) 27,6,5 pin, the resistance R in the 6 pin circuit taking alarm (7) 2One end, 7,8,9 pin meet red, green, blue optical diode D respectively 1, D 2, D 3One end, 11 pin connect the 3.3V power supply, 12 pin ground connection, 19 pin meet the triode Q in the power circuit (8) 4Base stage, 20 pin connect voltage stabilizing diode ZENER, resistance R 10An end and triode Q 2Collector, 21 pin meet low-voltage detection chip U 61 pin, 22,25,26 pin are connected the Bluetooth chip OR in the letter circuit 3, A 5, B 5Pin, 31 pin ground connection, 32 pin connect the 3.3V power supply, and 34,35 pin meet the liquid crystal display U in the digital indicator circuit (4) 43,2 pin, 37～40 pin meet the button K in the keyboard circuit (3) respectively 5～K 2One end.
2, wireless gas detector according to claim 1 is characterized in that resistance bridge RB, single supply amplifier U that testing circuit (1) is made up of catalysis element 1, resistance R 1And capacitor C 7, C 8Form, RB is by resistance R 15, R 16, carrier catalyst element r 1Pure carrier element r 2Form; U 13 pin meet R among the RB 15, R 16One end, 2 pin meet the r among the RB 1, r 2One end, 8,1 pin meets R respectively 1Two ends, 4,5 pin ground connection, 7 pin meet C 7, C 8One end and+the 3.3V power supply, C 7, C 8Other end ground connection, the r among the RB 1, R 15Another termination-3.3V power supply, r 2, R 16Other end ground connection.
3, wireless gas detector according to claim 1 is characterized in that telecommunication circuit (5) is by Bluetooth chip U 5, capacitor C 5, C 6Form with antenna ANTENNA; U 5OC 4, OC 6, OC 2Pin meets C 5, C 6One end and+the 3.3V power supply, B 3, OR 1, OR 2, T 1, T 3Pin meets C 5, C 6The other end and ground, T 2Pin meets ANTENNA.
CN 200520091037 2005-05-26 2005-05-26 Radio gas detecting instrument Expired - Fee Related CN2802607Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520091037 CN2802607Y (en) 2005-05-26 2005-05-26 Radio gas detecting instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520091037 CN2802607Y (en) 2005-05-26 2005-05-26 Radio gas detecting instrument

Publications (1)

Publication Number Publication Date
CN2802607Y true CN2802607Y (en) 2006-08-02

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ID=36847312

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520091037 Expired - Fee Related CN2802607Y (en) 2005-05-26 2005-05-26 Radio gas detecting instrument

Country Status (1)

Country Link
CN (1) CN2802607Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277686A (en) * 2016-08-15 2017-01-04 湘潭大学 The safety device that a kind of anaerobic tank uses
CN106405017A (en) * 2016-11-18 2017-02-15 长春工业大学 Portable methane detection alarm instrument
CN106530630A (en) * 2016-12-22 2017-03-22 德讯科技股份有限公司 Indoor air quality real-time on-line monitoring circuit based on bluetooth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277686A (en) * 2016-08-15 2017-01-04 湘潭大学 The safety device that a kind of anaerobic tank uses
CN106405017A (en) * 2016-11-18 2017-02-15 长春工业大学 Portable methane detection alarm instrument
CN106530630A (en) * 2016-12-22 2017-03-22 德讯科技股份有限公司 Indoor air quality real-time on-line monitoring circuit based on bluetooth

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee