CN105651945A - Wireless-charging multi-parameter gas measuring equipment - Google Patents

Wireless-charging multi-parameter gas measuring equipment Download PDF

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Publication number
CN105651945A
CN105651945A CN201610127499.1A CN201610127499A CN105651945A CN 105651945 A CN105651945 A CN 105651945A CN 201610127499 A CN201610127499 A CN 201610127499A CN 105651945 A CN105651945 A CN 105651945A
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China
Prior art keywords
chip
resistance
electric capacity
module
feet
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CN201610127499.1A
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Chinese (zh)
Inventor
马忠斌
盛洪
吴建军
帅超
王立新
曾文明
陈蜀洲
蒋红亮
刘佳
林可
李明春
胡智
江岭
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Chongqing Research Institute Co Ltd of China Coal Technology and Engineering Group
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Chongqing Research Institute Co Ltd of China Coal Technology and Engineering Group
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Priority to CN201610127499.1A priority Critical patent/CN105651945A/en
Publication of CN105651945A publication Critical patent/CN105651945A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • H02J7/025Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter using non-contact coupling, e.g. inductive, capacitive

Abstract

The invention discloses wireless-charging multi-parameter gas measuring equipment. The wireless-charging multi-parameter gas measuring equipment comprises a shell and a gas sampling module, a processor module, a power supply module, a wireless charging module, a button and display module and a storage unit which are respectively arranged in the shell, wherein the gas sampling module performs sampling and signal amplification on gas and outputs a level signal to the processor module, and the processor module detects the sampling signal and stores the processed data into the storage unit; the processor module is used for controlling liquid crystal display data, processing button information and controlling an alarm lamp and a buzzer; the button and display module receives the information from the processor module to set and display parameters, time and detection values; the wireless charging module emits electromagnetic waves to charge the power supply module. The wireless-charging multi-parameter gas measuring equipment has the advantages that wire connection is not needed during charging, a user only needs to place the equipment near a charger, and the trouble of wire intertwining is avoided.

Description

Wireless charging multiparameter gas determinator
Technical field
The present invention relates to the fields such as oil, chemical industry, iron and steel, environmental protection, non-coal mine, be specifically related to a kind of wireless charging multi-parameter gas tester in field application such as oil, chemical industry, iron and steel, environmental protection, non-coal mines.
Background technology
Multi-parameter gas detection technique is widely used in the detection to harmful gas etc., and exactly detected gas hidden danger in air can be made early warning, the development of this detection technique is maked rapid progress, application in the inspection of accident omen, elimination is also more and more extensive, its developing direction is microminiaturized and automatization, to realizing long term monitoring. The development of multi-parameter gas detection technique makes leakage process can be found in the early stage.
Current multiparameter gas determinator does not still have matured product to use wireless charging technology.
Summary of the invention
In consideration of it, the present invention provides a kind of wireless charging multi-parameter gas tester.
It is an object of the invention to be realized by such technical scheme, a kind of wireless charging multiparameter gas determinator, including housing with the gas sampling module, processor module, power module, wireless charging module, button and the display module that are respectively arranged in housing and memory element; Gas is sampled by described gas sampling module and signal amplifies, and gas sampling module outputs level signals is to processor module, and processor module completes the detection to sampled signal and the data after processing are stored memory element; Described processor module has been additionally operable to liquid crystal display data control, key information processes and the control work of alarm lamp and buzzer; Described button and display module receive the information of processor module, complete parameter, time, the setting of detected value and display function; Described wireless charging module launches electromagnetic wave, completes the charging to power module.
Further, described wireless charging module includes the first wave filter, power-down circuit, current detection circuit, has the electromagnetic radiation circuit of multiple input and control module,
Described current detection circuit includes chip U1, resistance R1, resistance R3, resistance R4, resistance R6, electric capacity C3, electric capacity C5 and electric capacity C8, and described chip U1 is operational amplifier;
Described power-down circuit includes transistor Q1��Q3, chip U2, electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C9, electric capacity C10, resistance R5, resistance R7, resistance R8, resistance R10, resistance R11 and diode D1, and described chip U2 is TLV70033DDC;
Described electromagnetic radiation circuit includes chip U3, chip U4, resistance R12��R24, electric capacity C11��C22, reactor L3, coil L2, and described chip U3 is CSD97376CQ4M, and chip U4 is CSD97376CQ4M;
Described control module includes chip U5 and peripheral circuit thereof, and described chip U5 is BQ500212A;
Described first wave filter includes resistance R2, resistance R9 and reactor L1 composition, described electric capacity C6 is parallel between two inputs of the first wave filter, and one of them outfan of described first wave filter is respectively through the colelctor electrode of resistance R5 and transistor Q1, be connected through the base stage of electric capacity C2 with transistor Q1, the emitter stage of described transistor Q1 is connected with the drain electrode of transistor Q3, the source electrode of transistor Q3 is connected with electromagnetic radiation circuit, parallel resistance R10 between the grid of transistor Q1 and source electrode, the colelctor electrode of transistor Q1 is connected through 1 foot of resistance R5 and chip U2, the emitter stage of transistor Q1 is connected through 3 feet of backward diode D1 and chip U2, described resistance R7 is parallel between 1 foot of chip U2 and the negative pole of diode D1, described resistance R8 is parallel between 1 foot of chip U2 and the positive pole of diode D1, the 1 foot meridian capacitor C1 ground connection of chip U2, 5 feet of chip U2 meet power supply VCC and this power supply VCC through electric capacity C4 ground connection, described electric capacity C10 is parallel between negative pole and the ground of diode D1, and electric capacity C9 is parallel between positive pole and the ground of diode D1, the drain electrode of described transistor Q2 is connected with the positive pole of diode D1, the grounded-grid of transistor Q2, and the source electrode of transistor Q2 is connected with electromagnetic radiation circuit, and resistance R11 is parallel between grid and the source electrode of transistor Q2,
One end of described resistance R1 with respectively with one end of electric capacity C3, one end of resistance R1, resistance R4 one end be connected, the other end ground connection of electric capacity C3, the other end of resistance R1 is connected with the positive input of chip U1, the other end of resistance R4 is connected with one end of resistance R6, the other end of resistance R6 is connected with the reverse input end of chip U1, and described electric capacity C5 is parallel between positive input and the reverse input end of chip U1; The outfan of described chip U1 is connected through 42 feet of resistance R3 and chip U5, and the positive supply input of described chip U1 is connected with one end of power supply VCC, electric capacity C8 respectively, and the other end of electric capacity C8 is connected with electromagnetic radiation circuit through electric capacity C7;
Reactor L3, resistance R12, resistance R13 form the second wave filter, the common port of described resistance R4 and resistance R6 is connected with 5 feet of electric capacity C17, chip U3 respectively, the other end ground connection of electric capacity C16,8 feet of chip U3 are connected through 12 feet of resistance R15 and chip U5 respectively, through resistance R16 ground connection, the electric capacity C17 being sequentially connected with and resistance R20 in parallel between 6 feet of chip U3 and 7 feet, through electric capacity C13 ground connection after the 1 of chip U3,2 foot parallel connections, 1 foot of chip U3 is connected with 1 foot of chip U2, and the 3 of chip U3,9 feet are directly grounded; 4 feet of chip U4 and one of them input of the second wave filter connect; The common port of described resistance R4 and resistance R6 is through electric capacity C20 ground connection, the 5 foot meridian capacitor C20 ground connection of chip U4, the 6 of chip U4, the electric capacity C19 being sequentially connected with and resistance R19 in parallel between 7 feet, 1 foot of chip U4 is connected with 1 foot of chip U2, the 1 of chip U4,2 foot meridian capacitor C14 ground connection, the 3 of chip U4,9 feet are directly grounded;8 feet of described chip U4, respectively through resistance R17 ground connection, are connected through 42 feet of resistance R14 and chip U5; The 4 foot meridian capacitor C11 of described chip U4 and another input of the second wave filter connect, bridging coil L2 between two outfans of the first wave filter; Described electric capacity C12, electric capacity C15, electric capacity C21 are parallel to the two ends of electric capacity C11, another input of electric capacity C18 and the second wave filter connects, the other end of electric capacity C18 is connected with one end of resistance R18, the other end of resistance R18 is connected through 39 feet of resistance R22 and chip U5 respectively, is connected with power supply VCC through resistance R21, resistance R23, resistance R24 through being sequentially connected with is connected with 40 feet of chip U5, the common end grounding of described resistance R23 and resistance R24, one end of electric capacity C22 is connected to the common port of resistance R22 and resistance R21, the other end ground connection of electric capacity C22.
Further, described power module includes the coil CZ3, battery management chip U6, linear charging block and the booster circuit that are sequentially connected with; Described coil CZ3 is connected with battery management chip U6, and coil CZ3 converts, by battery management chip U6, the electromagnetic wave received to power supply, by linear charging block, accumulator is charged; The voltage of accumulator is carried out boosting process and is externally exported by interface CZ1, interface CZ2 by booster circuit.
Further, described power module also includes the power supply power switching circuit being connected between linear charging block and booster circuit, described power supply power switching circuit is for when accumulator positive is when being charged, and supplying power for outside just directly uses charging voltage, it is ensured that battery can reach fully charged state.
Further, described gas sampling module includes CO sampling unit, H2S sampling unit, NO2Sampling unit and O2Sampling unit,
Described CO sampling unit includes CO sensor, resistance R65��R72, electric capacity C48��C53, inductance L6��L8, chip U10A and chip U10B, described chip U10A is operational amplifier, chip U10B is operational amplifier, the S end of the described CO inductance L8 through being sequentially connected with, resistance R68, resistance R69 are connected with the reverse input end of chip U10A, shunt capacitance C50 between the positive input of chip U10A and reverse input end, the positive input of chip U10A is through resistance R72 ground connection, and the outfan of chip U10A is connected with processor module through resistance R71; Resistance R71 is parallel resistance R70 between electric capacity C53 ground connection, outfan and the common port of resistance R68 and resistance R69 of chip U10A, and electric capacity C54 is in parallel with resistance R70; The common port of described resistance R68 and resistance R69 is connected through the positive input of resistance R67 with chip U10B, the R end of the CO sensor inductance L7 through being sequentially connected with, resistance R65, resistance R66 are connected with the reverse input end of chip U10B, electric capacity C49 is parallel between positive input and the reverse input end of chip U10B, the C end of CO sensor is connected through the outfan of inductance L6 with chip U10B, and electric capacity C48 is parallel between common port and the outfan of chip U10B of resistance R65, resistance R66;
Described O2Sampling unit includes O2Sensor, resistance R73��R76, electric capacity C55��C57 and chip U11, described chip U11 is operational amplifier, O2The two ends parallel resistance R53 and resistance R107 of sensor, resistance R107 is connected through the positive input of resistance R74 with chip U11, the reverse input end of chip U11 is through resistance R73 ground connection, parallel resistance R75 between the reverse input end of described chip U11 and outfan, the outfan of described chip U11 is connected with processor module through resistance R76;
Described H2S sampling unit, NO2Sampling unit adopts same structure with CO sampling unit.
Further, described processor module includes chip U13 and the A/D conversion unit being connected respectively and clock circuit with chip U13, and described chip U13 is PIC18F4620; Described A/D conversion unit receives 4 tunnel gas sampling signals and converts this 4 tunnel analogue signal to data signal, and by data-interface, data are uploaded to chip U13, chip U13 is after information processing, undertaken corresponding information binding time storing, show, the action such as alarm processes, chip U13 receives key-press module information by I/O mouth simultaneously, complete to the time, parameter adjustment is set, the 36 of chip U13,4 feet connect socket CZ5, complete the control to buzzer, alarm lamp; The 20 of chip U13,21,22,24 feet connect socket CZ6, CZ7, complete the data communication with liquid crystal display; The 8 of chip U13,9,14 feet be connected with socket CZ6, receive key information process.
Owing to have employed technique scheme, present invention have the advantage that:
1) safe and reliable: to design without wet contact, it is to avoid the danger of electric shock; Charge insecure shortcoming after there is no charging contact oxidation.
2) durable: electric power carrying device, without exposing, corrodes thus without by the moisture content in air, oxygen etc.; Contactless existence, also thus without there being the loss caused in connection with mechanical wear when separating and arcing etc.
3) convenient: without connecting with electric wire during charging, as long as being put near charger; There is no the trouble that electric wire is wound around mutually.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is wireless charging multiparameter gas determinator system block diagram;
Fig. 2 is wireless charger circuit theory diagrams, and 2a is power-off loop, and 2b is current detection circuit, and 2c is electromagnetic radiation circuit, and 2d is for controlling module circuit diagram;
Fig. 3 is power module circuitry schematic diagram;
Fig. 4 is gas sampling module circuit diagram, and 4a is CO sampling unit circuit diagram, and 4b is O2Sampling unit circuit diagram;
Fig. 5 is processor module circuit diagram;
Fig. 6 is button and display module circuit diagram.
Detailed description of the invention
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail; Should be appreciated that preferred embodiment is only for illustrating the present invention, rather than in order to limit the scope of the invention.
A kind of wireless charging multiparameter gas determinator, including housing with the gas sampling module, processor module, power module, wireless charging module, button and the display module that are respectively arranged in housing and memory element; Gas is sampled by described gas sampling module and signal amplifies, and gas sampling module outputs level signals is to processor module, and processor module completes the detection to sampled signal and the data after processing are stored memory element; Described processor module has been additionally operable to liquid crystal display data control, key information processes and the control work of alarm lamp and buzzer; Described button and display module receive the information of processor module, complete parameter, time, the setting of detected value and display function; Described wireless charging module launches electromagnetic wave, completes the charging to power module.
Wireless charging module launches electromagnetic wave, completes the charging to ferric phosphate lithium cell; Power source charges module receives the battery ripple that wireless charger sends, and ferric phosphate lithium cell is charged management, and motherboard circuit provides 2 road 3.3V power supplys;Gas sampling module adopts four kinds of gas detecting elements to complete the sampling to four kinds of gas with various and signal amplification work, and outputs level signals is to processor module; Processor module is core, completes the detection to sampled signal, liquid crystal display data controls, key information processes, the work such as control of data storage and alarm lamp and buzzer; Button and display module receive processor information, complete parameter, storage data, time, the setting of detected value and display function.
As in figure 2 it is shown, described wireless charging module includes the first wave filter, power-down circuit, current detection circuit, has the electromagnetic radiation circuit of multiple input and control module,
Described current detection circuit includes chip U1, resistance R1, resistance R3, resistance R4, resistance R6, electric capacity C3, electric capacity C5 and electric capacity C8, and described chip U1 is operational amplifier;
Described power-down circuit includes transistor Q1��Q3, chip U2, electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C9, electric capacity C10, resistance R5, resistance R7, resistance R8, resistance R10, resistance R11 and diode D1, and described chip U2 is TLV70033DDC;
Described electromagnetic radiation circuit includes chip U3, chip U4, resistance R12��R24, electric capacity C11��C22, reactor L3, coil L2, and described chip U3 is CSD97376CQ4M, and chip U4 is CSD97376CQ4M;
Described control module includes chip U5 and peripheral circuit thereof, and described chip U5 is BQ500212A;
Described first wave filter includes resistance R2, resistance R9 and reactor L1 composition, described electric capacity C6 is parallel between two inputs of the first wave filter, and one of them outfan of described first wave filter is respectively through the colelctor electrode of resistance R5 and transistor Q1, be connected through the base stage of electric capacity C2 with transistor Q1, the emitter stage of described transistor Q1 is connected with the drain electrode of transistor Q3, the source electrode of transistor Q3 is connected with electromagnetic radiation circuit, parallel resistance R10 between the grid of transistor Q1 and source electrode, the colelctor electrode of transistor Q1 is connected through 1 foot of resistance R5 and chip U2, the emitter stage of transistor Q1 is connected through 3 feet of backward diode D1 and chip U2, described resistance R7 is parallel between 1 foot of chip U2 and the negative pole of diode D1, described resistance R8 is parallel between 1 foot of chip U2 and the positive pole of diode D1, the 1 foot meridian capacitor C1 ground connection of chip U2, 5 feet of chip U2 meet power supply VCC and this power supply VCC through electric capacity C4 ground connection, described electric capacity C10 is parallel between negative pole and the ground of diode D1, and electric capacity C9 is parallel between positive pole and the ground of diode D1, the drain electrode of described transistor Q2 is connected with the positive pole of diode D1, the grounded-grid of transistor Q2, and the source electrode of transistor Q2 is connected with electromagnetic radiation circuit, and resistance R11 is parallel between grid and the source electrode of transistor Q2,
One end of described resistance R1 with respectively with one end of electric capacity C3, one end of resistance R1, resistance R4 one end be connected, the other end ground connection of electric capacity C3, the other end of resistance R1 is connected with the positive input of chip U1, the other end of resistance R4 is connected with one end of resistance R6, the other end of resistance R6 is connected with the reverse input end of chip U1, and described electric capacity C5 is parallel between positive input and the reverse input end of chip U1; The outfan of described chip U1 is connected through 42 feet of resistance R3 and chip U5, and the positive supply input of described chip U1 is connected with one end of power supply VCC, electric capacity C8 respectively, and the other end of electric capacity C8 is connected with electromagnetic radiation circuit through electric capacity C7;
Reactor L3, resistance R12, resistance R13 form the second wave filter, the common port of described resistance R4 and resistance R6 is connected with 5 feet of electric capacity C17, chip U3 respectively, the other end ground connection of electric capacity C16,8 feet of chip U3 are connected through 12 feet of resistance R15 and chip U5 respectively, through resistance R16 ground connection, the electric capacity C17 being sequentially connected with and resistance R20 in parallel between 6 feet of chip U3 and 7 feet, through electric capacity C13 ground connection after the 1 of chip U3,2 foot parallel connections, 1 foot of chip U3 is connected with 1 foot of chip U2, and the 3 of chip U3,9 feet are directly grounded; 4 feet of chip U4 and one of them input of the second wave filter connect; The common port of described resistance R4 and resistance R6 is through electric capacity C20 ground connection, the 5 foot meridian capacitor C20 ground connection of chip U4, the 6 of chip U4, the electric capacity C19 being sequentially connected with and resistance R19 in parallel between 7 feet, 1 foot of chip U4 is connected with 1 foot of chip U2, the 1 of chip U4,2 foot meridian capacitor C14 ground connection, the 3 of chip U4,9 feet are directly grounded; 8 feet of described chip U4, respectively through resistance R17 ground connection, are connected through 42 feet of resistance R14 and chip U5; The 4 foot meridian capacitor C11 of described chip U4 and another input of the second wave filter connect, bridging coil L2 between two outfans of the first wave filter; Described electric capacity C12, electric capacity C15, electric capacity C21 are parallel to the two ends of electric capacity C11, another input of electric capacity C18 and the second wave filter connects, the other end of electric capacity C18 is connected with one end of resistance R18, the other end of resistance R18 is connected through 39 feet of resistance R22 and chip U5 respectively, is connected with power supply VCC through resistance R21, resistance R23, resistance R24 through being sequentially connected with is connected with 40 feet of chip U5, the common end grounding of described resistance R23 and resistance R24, one end of electric capacity C22 is connected to the common port of resistance R22 and resistance R21, the other end ground connection of electric capacity C22.
Wireless charger circuit workflow: provide 5V power supply by USB interface (J1), then passes through element C6, R2, R9, L1 and goes interference to process 5V power supply); And through U2 blood pressure lowering be the 3.3V working power as charge controller chip U5 (BQ500212A); The 5V that U5 disconnects USB interface by controlling power-off loop to decide whether powers; U5 controls charging current by current detection circuit to transfinite; Meanwhile, U5 controls display lamp by pin 7,8 and represents charged state and malfunction, controls buzzer SP1 by pin 24 and sends fault alarm sound; After the voltage of input power, electric current are controlled, convert PWM electromagnetic wave to by transmitting terminal circuit to emission charged electrical magnetic wave sense.
As it is shown on figure 3, described power module includes the coil CZ3, battery management chip U6, linear charging block and the booster circuit that are sequentially connected with; Described coil CZ3 is connected with battery management chip U6, and coil CZ3 converts, by battery management chip U6, the electromagnetic wave received to power supply, by linear charging block, accumulator is charged; The voltage of accumulator is carried out boosting process and is externally exported by interface CZ1, interface CZ2 by booster circuit.
Described power module also includes the power supply power switching circuit being connected between linear charging block and booster circuit, described power supply power switching circuit is for when accumulator positive is when being charged, supplying power for outside just directly uses charging voltage, it is ensured that battery can reach fully charged state.
Power module element circuit workflow: the receiving terminal circuit of power module is made up of coil CZ3, reception battery management chip U6 and auxiliary element (C32��C43, R49��R52), converts the electromagnetic wave received to 5VDC power supply and ferric phosphate lithium cell BAT is carried out linear-charging;Linear charging block is mainly made up of chip U7 (CN3058E) and other auxiliary element (R53��R19, E1, E2, LED4), LED4 represents that charged state, chip CN3058E possess the detection to charging temperature, charging voltage, charging current and control function; M1 and D3 in circuit is power supply power switching circuit, and when battery is charged, supplying power for outside just directly uses charging voltage, it is ensured that battery can reach fully charged state; Cell voltage 3.2V is raised to 3.3V (2 tunnel) and is externally exported by interface CZ1, CZ2 by the circuit that power supply chip U8, U9 and other auxiliary element (L4, L5, R62, R63, C44, C45, C46, C47) form.
As shown in Figure 4, described gas sampling module includes CO sampling unit, H2S sampling unit, NO2Sampling unit and O2Sampling unit,
Described CO sampling unit includes CO sensor, resistance R65��R72, electric capacity C48��C53, inductance L6��L8, chip U10A and chip U10B, described chip U10A is operational amplifier, chip U10B is operational amplifier, the S end of the described CO inductance L8 through being sequentially connected with, resistance R68, resistance R69 are connected with the reverse input end of chip U10A, shunt capacitance C50 between the positive input of chip U10A and reverse input end, the positive input of chip U10A is through resistance R72 ground connection, and the outfan of chip U10A is connected with processor module through resistance R71; Resistance R71 is parallel resistance R70 between electric capacity C53 ground connection, outfan and the common port of resistance R68 and resistance R69 of chip U10A, and electric capacity C54 is in parallel with resistance R70; The common port of described resistance R68 and resistance R69 is connected through the positive input of resistance R67 with chip U10B, the R end of the CO sensor inductance L7 through being sequentially connected with, resistance R65, resistance R66 are connected with the reverse input end of chip U10B, electric capacity C49 is parallel between positive input and the reverse input end of chip U10B, the C end of CO sensor is connected through the outfan of inductance L6 with chip U10B, and electric capacity C48 is parallel between common port and the outfan of chip U10B of resistance R65, resistance R66;
Described O2Sampling unit includes O2Sensor, resistance R73��R76, electric capacity C55��C57 and chip U11, described chip U11 is operational amplifier, O2The two ends parallel resistance R53 and resistance R107 of sensor, resistance R107 is connected through the positive input of resistance R74 with chip U11, the reverse input end of chip U11 is through resistance R73 ground connection, parallel resistance R75 between the reverse input end of described chip U11 and outfan, the outfan of described chip U11 is connected with processor module through resistance R76;
Described H2S sampling unit, NO2Sampling unit adopts same structure with CO sampling unit.
Gas sampling modular unit circuit workflow: sensing element O2��NO2��CO��H2After S gathers corresponding gas, produce the signal of telecommunication through electrochemical reaction, each self-corresponding discharge circuit be amplified, export 4 tunnel level signals (analogue signal).
As it is shown in figure 5, described processor module includes chip U13 and the A/D conversion unit being connected respectively and clock circuit with chip U13, described chip U13 is PIC18F4620, described A/D conversion unit receives 4 tunnel gas sampling signals and converts this 4 tunnel analogue signal to data signal, and by data-interface, data are uploaded to chip U13, chip U13 is after information processing, corresponding information binding time is stored, display, the actions such as alarm process, user just can select to observe the measured value of gas with various and corresponding time thereof on a liquid crystal display by button, chip U13 receives key-press module information by I/O mouth simultaneously, complete the time, parameter adjustment is set, , also the selection storage function of different information can be carried out by button.The 36 of chip U13,4 feet connect socket CZ5, complete the control to buzzer, alarm lamp; The 20 of chip U13,21,22,24 feet connect socket CZ6, CZ7, complete the data communication with liquid crystal display; The 8 of chip U13,9,14 feet be connected with socket CZ6, receive key information process.
With reference to accompanying drawing 6, button and display module element circuit workflow: S1, S2, S3 be totally three buttons, each button has 2 states, the high and low level of corresponding output, the chip U13 information reading by the complete paired keys of high and low level state; LCD1 represents LCD MODULE, carries out data communication by simulative serial port with chip U13, receives chip U13 order, shows different contents; LED5, LED6, LED7, LED8 be totally 4 alarm lamps, receives chip U13 order, the alarm condition of 4 kinds of gases carries out different light status (put out/bright) respectively and shows; Formed buzzer alarm circuit by U20, SP1 and other auxiliary element, receive chip U13 order, complete audible alarm.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, it is clear that the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (6)

1. a wireless charging multiparameter gas determinator, it is characterised in that: include housing and the gas sampling module, processor module, power module, wireless charging module, button and the display module that are respectively arranged in housing and memory element; Gas is sampled by described gas sampling module and signal amplifies, and gas sampling module outputs level signals is to processor module, and processor module completes the detection to sampled signal and the data after processing are stored memory element; Described processor module has been additionally operable to liquid crystal display data control, key information processes and the control work of alarm lamp and buzzer; Described button and display module receive the information of processor module, complete parameter, time, the setting of detected value and display function; Described wireless charging module launches electromagnetic wave, completes the charging to power module.
2. wireless charging multiparameter gas determinator according to claim 1, it is characterised in that: described wireless charging module includes the first wave filter, power-down circuit, current detection circuit, has the electromagnetic radiation circuit of multiple input and control module,
Described current detection circuit includes chip U1, resistance R1, resistance R3, resistance R4, resistance R6, electric capacity C3, electric capacity C5 and electric capacity C8, and described chip U1 is operational amplifier;
Described power-down circuit includes transistor Q1��Q3, chip U2, electric capacity C1, electric capacity C2, electric capacity C4, electric capacity C9, electric capacity C10, resistance R5, resistance R7, resistance R8, resistance R10, resistance R11 and diode D1, and described chip U2 is TLV70033DDC;
Described electromagnetic radiation circuit includes chip U3, chip U4, resistance R12��R24, electric capacity C11��C22, reactor L3, coil L2, and described chip U3 is CSD97376CQ4M, and chip U4 is CSD97376CQ4M;
Described control module includes chip U5 and peripheral circuit thereof, and described chip U5 is BQ500212A;
Described first wave filter includes resistance R2, resistance R9 and reactor L1 composition, described electric capacity C6 is parallel between two inputs of the first wave filter, and one of them outfan of described first wave filter is respectively through the colelctor electrode of resistance R5 and transistor Q1, be connected through the base stage of electric capacity C2 with transistor Q1;The emitter stage of described transistor Q1 is connected with the drain electrode of transistor Q3, the source electrode of transistor Q3 is connected with electromagnetic radiation circuit, parallel resistance R10 between the grid of transistor Q1 and source electrode, the colelctor electrode of transistor Q1 is connected through 1 foot of resistance R5 and chip U2, the emitter stage of transistor Q1 is connected through 3 feet of backward diode D1 and chip U2, described resistance R7 is parallel between 1 foot of chip U2 and the negative pole of diode D1, described resistance R8 is parallel between 1 foot of chip U2 and the positive pole of diode D1, the 1 foot meridian capacitor C1 ground connection of chip U2, 5 feet of chip U2 meet power supply VCC and this power supply VCC through electric capacity C4 ground connection, described electric capacity C10 is parallel between negative pole and the ground of diode D1, and electric capacity C9 is parallel between positive pole and the ground of diode D1, the drain electrode of described transistor Q2 is connected with the positive pole of diode D1, the grounded-grid of transistor Q2, and the source electrode of transistor Q2 is connected with electromagnetic radiation circuit, and resistance R11 is parallel between grid and the source electrode of transistor Q2,
One end of described resistance R1 with respectively with one end of electric capacity C3, one end of resistance R1, resistance R4 one end be connected, the other end ground connection of electric capacity C3, the other end of resistance R1 is connected with the positive input of chip U1, the other end of resistance R4 is connected with one end of resistance R6, the other end of resistance R6 is connected with the reverse input end of chip U1, and described electric capacity C5 is parallel between positive input and the reverse input end of chip U1; The outfan of described chip U1 is connected through 42 feet of resistance R3 and chip U5, and the positive supply input of described chip U1 is connected with one end of power supply VCC, electric capacity C8 respectively, and the other end of electric capacity C8 is connected with electromagnetic radiation circuit through electric capacity C7;
Reactor L3, resistance R12, resistance R13 form the second wave filter, the common port of described resistance R4 and resistance R6 is connected with 5 feet of electric capacity C17, chip U3 respectively, the other end ground connection of electric capacity C16,8 feet of chip U3 are connected through 12 feet of resistance R15 and chip U5 respectively, through resistance R16 ground connection, the electric capacity C17 being sequentially connected with and resistance R20 in parallel between 6 feet of chip U3 and 7 feet, through electric capacity C13 ground connection after the 1 of chip U3,2 foot parallel connections, 1 foot of chip U3 is connected with 1 foot of chip U2, and the 3 of chip U3,9 feet are directly grounded; 4 feet of chip U4 and one of them input of the second wave filter connect; The common port of described resistance R4 and resistance R6 is through electric capacity C20 ground connection, the 5 foot meridian capacitor C20 ground connection of chip U4, the 6 of chip U4, the electric capacity C19 being sequentially connected with and resistance R19 in parallel between 7 feet, 1 foot of chip U4 is connected with 1 foot of chip U2, the 1 of chip U4,2 foot meridian capacitor C14 ground connection, the 3 of chip U4,9 feet are directly grounded; 8 feet of described chip U4, respectively through resistance R17 ground connection, are connected through 42 feet of resistance R14 and chip U5; The 4 foot meridian capacitor C11 of described chip U4 and another input of the second wave filter connect, bridging coil L2 between two outfans of the first wave filter; Described electric capacity C12, electric capacity C15, electric capacity C21 are parallel to the two ends of electric capacity C11, another input of electric capacity C18 and the second wave filter connects, the other end of electric capacity C18 is connected with one end of resistance R18, the other end of resistance R18 is connected through 39 feet of resistance R22 and chip U5 respectively, is connected with power supply VCC through resistance R21, resistance R23, resistance R24 through being sequentially connected with is connected with 40 feet of chip U5, the common end grounding of described resistance R23 and resistance R24, one end of electric capacity C22 is connected to the common port of resistance R22 and resistance R21, the other end ground connection of electric capacity C22.
3. wireless charging multiparameter gas determinator according to claim 2, it is characterised in that: described power module includes the coil CZ3, battery management chip U6, linear charging block and the booster circuit that are sequentially connected with; Described coil CZ3 is connected with battery management chip U6, and coil CZ3 converts, by battery management chip U6, the electromagnetic wave received to power supply, by linear charging block, accumulator is charged; The voltage of accumulator is carried out boosting process and is externally exported by interface CZ1, interface CZ2 by booster circuit.
4. wireless charging multiparameter gas determinator according to claim 3, it is characterized in that: described power module also includes the power supply power switching circuit being connected between linear charging block and booster circuit, described power supply power switching circuit is for when accumulator positive is when being charged, supplying power for outside just directly uses charging voltage, it is ensured that battery can reach fully charged state.
5. wireless charging multiparameter gas determinator according to claim 3, it is characterised in that: described gas sampling module includes CO sampling unit, H2S sampling unit, NO2Sampling unit and O2Sampling unit,
Described CO sampling unit includes CO sensor, resistance R65��R72, electric capacity C48��C53, inductance L6��L8, chip U10A and chip U10B, described chip U10A is operational amplifier, chip U10B is operational amplifier, the S end of the described CO inductance L8 through being sequentially connected with, resistance R68, resistance R69 are connected with the reverse input end of chip U10A, shunt capacitance C50 between the positive input of chip U10A and reverse input end, the positive input of chip U10A is through resistance R72 ground connection, and the outfan of chip U10A is connected with processor module through resistance R71; Resistance R71 is parallel resistance R70 between electric capacity C53 ground connection, outfan and the common port of resistance R68 and resistance R69 of chip U10A, and electric capacity C54 is in parallel with resistance R70; The common port of described resistance R68 and resistance R69 is connected through the positive input of resistance R67 with chip U10B, the R end of the CO sensor inductance L7 through being sequentially connected with, resistance R65, resistance R66 are connected with the reverse input end of chip U10B, electric capacity C49 is parallel between positive input and the reverse input end of chip U10B, the C end of CO sensor is connected through the outfan of inductance L6 with chip U10B, and electric capacity C48 is parallel between common port and the outfan of chip U10B of resistance R65, resistance R66;
Described O2Sampling unit includes O2Sensor, resistance R73��R76, electric capacity C55��C57 and chip U11, described chip U11 is operational amplifier, O2The two ends parallel resistance R53 and resistance R107 of sensor, resistance R107 is connected through the positive input of resistance R74 with chip U11, the reverse input end of chip U11 is through resistance R73 ground connection, parallel resistance R75 between the reverse input end of described chip U11 and outfan, the outfan of described chip U11 is connected with processor module through resistance R76;
Described H2S sampling unit, NO2Sampling unit adopts same structure with CO sampling unit.
6. wireless charging multiparameter gas determinator according to claim 4, it is characterised in that: described processor module includes chip U13 and the A/D conversion unit being connected respectively and clock circuit with chip U13, and described chip U13 is PIC18F4620; Described A/D conversion unit receives 4 tunnel gas sampling signals and converts this 4 tunnel analogue signal to data signal, and by data-interface, data are uploaded to chip U13, chip U13 is after information processing, undertaken corresponding information binding time storing, show, the action such as alarm processes, chip U13 receives key-press module information by I/O mouth simultaneously, complete to the time, parameter adjustment is set, the 36 of chip U13,4 feet connect socket CZ5, complete the control to buzzer, alarm lamp;The 20 of chip U13,21,22,24 feet connect socket CZ6, CZ7, complete the data communication with liquid crystal display; The 8 of chip U13,9,14 feet be connected with socket CZ6, receive key information process.
CN201610127499.1A 2016-03-07 2016-03-07 Wireless-charging multi-parameter gas measuring equipment Pending CN105651945A (en)

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