CN207439453U - Intelligent terminal - Google Patents

Abstract

A kind of intelligent terminal, including：Main control module, sensor module and communication module, sensor module include：One or more module group units, module group unit include：Common bottom plate, gas detection sensor are connected with gas detection sensor and receive the gas detection sensor and detect data and the conversion equipment and general-purpose interface converted, common bottom plate carries gas detection sensor and conversion equipment, and the general-purpose interface of each gas detection module group unit is the general-purpose interface of unified standard agreement；Above-mentioned intelligent terminal is monitored environment by multiple sensors module to obtain monitoring data, and passes through general-purpose interface and be transferred to main control module, and sending monitoring data to backstage Cloud Server connected to it by wireless communication module by communication module communicates；Sensor can be matched as needed, can arbitrarily dock each sensor die group interface and sensor module can carry out charged realization plug and pull, and sensor module can arbitrarily dock each interface.

Description

Intelligent terminal

Technical field

The utility model is related to a kind of intelligent terminals.

Background technology

The sensor module negligible amounts that existing terminal intelligent terminal can be installed, the sensor that intelligent terminal can be installed Module type is single, is not available for matching.After sensor module service life expires used in intelligent terminal, difficulty is replaced It is high.Sensor interface is mixed and disorderly and disunity, docking difficulty are high.

The another prior art is usually that sensor is directly welded on PCB, the communications protocol of each sensor, interface definition All different with construction packages, the terminal on each sensor docking pcb board all has uniqueness and independence substantially.It passes Sensor module communication interface independence is stronger, generally can not be with other sensors shared interface.Sensor module communication interface with And port encapsulation is each inconsistent and numerous and diverse, docking difficulty is high.

Sensor module is directly welded at PCB on or with wire connection terminal by the another prior art, and sensor module is using damaging After the bad or service life expires, replacing needs higher technical foundation.Sensor module is powered off when replacing, and otherwise can be given Sensor module causes the damage of distinct program.And need to power off when replacing, reduce flexibility and the operability of product.

Utility model content

Based on this, it is necessary to provide a kind of intelligent terminal that can be convenient for changing sensor module.

A kind of intelligent terminal, including：Main control module is connected with the main control module and is detected by master control module controls Sensor module and the communication module that is connected with the main control module and is carried out data transmission by the master control module controls, institute Stating sensor module includes：One or more module group units, the module group unit include：Common bottom plate, gas detection sensor, Be connected with the gas detection sensor and receive the gas detection sensor detection data and converted conversion equipment, with Conversion equipment connects and receives the general-purpose interface of the conversion equipment change data, and the common bottom plate carries gas detection sensor And conversion equipment, the general-purpose interface of each gas detection module group unit is the general-purpose interface of unified standard agreement.

In a preferred embodiment, the main control module includes：The main control chip U2 of integrated treatment and with the master control core Piece U2 communications connect and connect all module group units and gather the sensor control chip U3 of the module group unit data；The master P1.7/SCS ends, P1.6/SCK ends, P1.5/SDI ends, the P1.4/SDO ends for controlling chip U2 are and the sensor control chip U3 Carry out the SPI communication buses port of data interaction；The communication module includes：WIFI module, the P0.4/ of the main control chip U2 RST ends, P0.3/UTX/T1 ends, P0.2/URX/TC2 ends, P0.1/INT1/TC1 ends and WIFI module connection communication.

In a preferred embodiment, further include：Human-computer interaction module, brightness acquisition with the main control chip connection communication Module, display module, the communication module further include：Infrared module, the P5.2/AIN10/PWM1 ends of the main control chip U2 are It gathers the ADC voltage samples interface of ambient brightness and is connected interaction with the brightness acquisition module, the main control chip U2's P1.3/SCL ports, P1.2/SDA ports are the input port that data communication is carried out with the human-computer interaction module.

In a preferred embodiment, the sensor control chip U3 is also associated with dust detection sensor, humiture inspection Sensor is surveyed, P1.3/SCL ports, the P1.2/SDA ports of the sensor control chip U3 are and Temperature and Humidity sensor Data communication iic bus port is carried out, the serial data end SDA of the Temperature and Humidity sensor accesses the sensor control The P1.2/SDA ports of chip U3, its another Tiao Zhi road access the vdd terminal of the sensor control chip U3 by resistance R60, The ground terminal VSS ground connection of the Temperature and Humidity sensor, its another Tiao Zhi road are linked into its power supply electricity by two shunt capacitances The sensor control chip U3 is accessed on pressure side VDD, another Tiao Zhi roads of supply voltage end VDD of the Temperature and Humidity sensor Vdd terminal, the serial clock terminal SCL of the Temperature and Humidity sensor is linked into the P1.3/ of the sensor control chip U3 SCL ports；The dust detection sensor is connected with power supply breaking circuit, and the power supply breaking circuit includes：Control break-make institute It states the metal-oxide-semiconductor Q10 of dust detection sensor power supply, amplify the triode Q11 of driving, setting for the prime of the metal-oxide-semiconductor Q10 The transistor base for current limliting triode Q11 current-limiting resistance R57, be arranged on the metal-oxide-semiconductor Q10 drain electrode and grid The pull-up resistor R55 of the grid of the metal-oxide-semiconductor Q10 is acted between pole for pull-up, is arranged on the grid of the metal-oxide-semiconductor Q10 Between pole and the triode Q11 collectors for metering function in the current-limiting resistance R65 of the grid of the metal-oxide-semiconductor Q10 and For filtering the filter capacitor C23 and C24 of out-put supply.

In a preferred embodiment, the heat for the standard Protocol Data that the general-purpose interface is converted for the reception conversion equipment General-purpose interface is plugged, the module group unit further includes：It is arranged on the common bottom plate and sensor power supply described in break-make Power supply circuit and it is arranged on the reference voltage circuit being connected on the common bottom plate with the conversion equipment.

In a preferred embodiment, the gas detection sensor includes：Formaldehyde examination sensor, the conversion equipment bag The conversion chip U8 that formaldehyde examination sensor detection data are connected and received with the formaldehyde examination sensor is included, it is described general Interface includes：It is connected with the conversion chip U8 and receives the general-purpose interface J17 of the transmission data of the conversion chip U8, it is described Common bottom plate includes：Carry the formaldehyde examination common bottom plate of the formaldehyde examination sensor and conversion chip U8.

In a preferred embodiment, the power supply circuit includes being arranged on the formaldehyde examination common bottom plate simultaneously break-make first The formaldehyde examination sensor feed circuit of aldehyde detection sensor power supply, the formaldehyde examination sensor feed circuit include：Control The metal-oxide-semiconductor Q11 that formaldehyde examination sensor described in break-make processed is powered and three poles of the prime amplification driving for the metal-oxide-semiconductor Q11 Pipe Q13, the pull-up for the grid that the metal-oxide-semiconductor Q11 is acted on for the current-limiting resistance R67 of current limliting triode Q13, for pull-up are electric Hinder R59, for metering function in the current-limiting resistance R65 of the grid of the metal-oxide-semiconductor Q11 and filtering for filtering out-put supply Capacitance C29 and C31, the triode Q13 base stages are linked into 14 feet of the conversion chip U8 by current-limiting resistance R67, described Pull-up resistor R59 is arranged between drain electrode and the grid of the metal-oxide-semiconductor Q11, the pull-up resistor R59 and metal-oxide-semiconductor Q11's The common port access power supply of drain electrode；The filter capacitor C29 is in parallel with C31, its common port one end ground connection, a branch of the other end The source electrode of the metal-oxide-semiconductor Q11 is accessed on road, another branch accesses the voltage input end of the formaldehyde examination sensor, the ginseng Examining potential circuit includes the first reference voltage circuit being arranged on the formaldehyde examination common bottom plate, first reference voltage Circuit includes：Controllable accurate source of stable pressure U10, for divide current limliting current-limiting resistor voltage divider R60, for dividing the controllable accurate The divider resistance R63 and R69 of the input voltage of source of stable pressure U10 and the filter capacitor C27 for filtering the reference voltage of output, The cathode of the controllable accurate source of stable pressure U10 accesses power supply, the controllable accurate source of stable pressure U10 by current-limiting resistor voltage divider R60 The common port of cathode and filter capacitor C27 be linked into 25 feet of the conversion chip U8, the controllable accurate source of stable pressure U10's The common end grounding of anode and divider resistance R69, the filter capacitor C27 are connected in parallel on the sun of the controllable accurate source of stable pressure U10 Between pole and cathode；The formaldehyde examination sensor, conversion chip U8, general-purpose interface J17, formaldehyde examination sensor power supply electricity Road, the first reference voltage circuit, formaldehyde examination common bottom plate form formaldehyde examination module group unit and are formed as a module group unit.

In a preferred embodiment, the gas detection sensor includes：Sensor for detecting carbon monoxide, the converting means Put the conversion core including sensor for detecting carbon monoxide detection data are connected and received with the sensor for detecting carbon monoxide Piece U9, the general-purpose interface include：It is connected with the conversion chip U9 and receives the logical of the transmission data of the conversion chip U9 With interface J18, the common bottom plate includes：Carry the sensor for detecting carbon monoxide and the carbon monoxide inspection of conversion chip U9 Survey common bottom plate；The power supply circuit includes being arranged on the Carbon Monoxide Detection common bottom plate and break-make Carbon Monoxide Detection The sensor for detecting carbon monoxide power supply circuit of sensor power supply, the reference voltage circuit include：With the conversion chip Second reference voltage circuit of U9 connections, the sensor for detecting carbon monoxide power supply circuit include：Control an oxygen described in break-make Change the power supply of carbon detection sensor metal-oxide-semiconductor Q12 and for the metal-oxide-semiconductor Q12 prime amplification driving triode Q14, be used for The current-limiting resistance R68 of current limliting triode Q14, for pull up act on the metal-oxide-semiconductor Q12 grid pull-up resistor R61, be used for Metering function in the grid of the metal-oxide-semiconductor Q12 current-limiting resistance R66 and for filter the filter capacitor C30 of out-put supply and C32, second reference voltage circuit include：Controllable accurate source of stable pressure U11, for divide the current-limiting resistor voltage divider R62 of current limliting, Filter for the divider resistance R64 and R70 that divide the controllable accurate source of stable pressure U11 and for filtering the reference voltage of output Ripple capacitance C28；The sensor for detecting carbon monoxide, conversion chip U9, general-purpose interface J18, sensor for detecting carbon monoxide supply Circuit, Carbon Monoxide Detection common bottom plate, the second reference voltage circuit form Carbon Monoxide Detection module group unit and formation one A module group unit.

In a preferred embodiment, the gas detection sensor includes：Carbon dioxide detection sensor, the converting means Put the conversion core including carbon dioxide detection sensor detection data are connected and received with the carbon dioxide detection sensor Piece U12, the general-purpose interface include：It is connected with the conversion chip U12 and receives the transmission data of the conversion chip U12 General-purpose interface J21, the common bottom plate include：Carry the carbon dioxide detection sensor and the titanium dioxide of conversion chip U12 Carbon detects common bottom plate；The power supply circuit includes being arranged on the carbon dioxide detection common bottom plate and break-make carbon dioxide The carbon dioxide detection sensor power supply circuit of detection sensor power supply, the reference voltage circuit include：Access is described to be turned The 3rd reference voltage circuit of the reference voltage end of chip U12 is changed, the carbon dioxide detection sensor power supply circuit includes：Control The metal-oxide-semiconductor Q15 and amplify driving for the prime of the metal-oxide-semiconductor Q15 that carbon dioxide detection sensor described in break-make processed is powered Triode Q17, for the current-limiting resistance R89 of current limliting triode Q17, for pulling up the grid for acting on the metal-oxide-semiconductor Q15 Pull-up resistor R81, for metering function in the current-limiting resistance R87 of the grid of the metal-oxide-semiconductor Q15 and for filtering out-put supply Filter capacitor C41 and C43, the 3rd reference voltage circuit include：Controllable accurate source of stable pressure U14, point for dividing current limliting Pressure current-limiting resistance R82, for dividing the divider resistance R85 and R91 of the input voltage of the controllable accurate source of stable pressure U11 and use In the filter capacitor C39 of the reference voltage of filtering output；The carbon dioxide detection sensor, conversion chip U12, general-purpose interface J21, carbon dioxide detection sensor power supply circuit, the 3rd reference voltage circuit and carbon dioxide detection common bottom plate form dioxy Change carbon detection module group unit and form a module group unit.

In a preferred embodiment, the gas detection sensor includes：Oxygen detection sensor, the conversion equipment bag The conversion chip U13 that oxygen detection sensor detection data are connected and received with the oxygen detection sensor is included, it is described logical Included with interface：It is connected with the conversion chip U13 and receives the general-purpose interface J22 of the transmission data of the conversion chip U13, The common bottom plate includes：Carry the oxygen detection sensor and the oxygen detection common bottom plate of conversion chip U13；The confession Circuit includes being arranged on the oxygen detection common bottom plate and the oxygen detection of break-make oxygen detection sensor power supply passes Sensor power supply circuit, the reference voltage circuit include：Access the 4th reference electricity of the reference voltage end of the conversion chip U13 Volt circuit, the oxygen detection sensor feed circuit include：Control the metal-oxide-semiconductor of oxygen detection sensor power supply described in break-make Q16 and for the metal-oxide-semiconductor Q16 prime amplification driving triode Q18, the current-limiting resistance for current limliting triode Q18 R90, for pull up act on the metal-oxide-semiconductor Q16 grid pull-up resistor R83, for metering function in the metal-oxide-semiconductor Q16 Grid current-limiting resistance R88 and filter capacitor C42 and C44 for filtering out-put supply, the 4th reference voltage circuit Including：Controllable accurate source of stable pressure U15, for divide current limliting current-limiting resistor voltage divider R84, for dividing the controllable accurate voltage stabilizing The divider resistance R86 and R92 of the input voltage of source U15 and the filter capacitor C40 for filtering the reference voltage of output；It is described Oxygen detection sensor, conversion chip U13, general-purpose interface J22, oxygen detection sensor feed circuit, the 4th reference voltage electricity Road and oxygen detection common bottom plate form oxygen detection module group unit and form a module group unit；The general-purpose interface J22, lead to With interface J21, general-purpose interface J18, the general-purpose interface that general-purpose interface J17 is uniform protocol.

Above-mentioned intelligent terminal is monitored environment by multiple sensors module to obtain monitoring data, and passes through general Interface is transferred to main control module, and the data of main control module with backstage Cloud Server are communicated by communication module, and will monitor number It communicates according to backstage Cloud Server connected to it is sent to by wireless communication module；Sensor can be matched as needed, Each sensor die group interface and sensor module, which can arbitrarily be docked, can carry out charged realization plug and pull；Pass through modulus of conversion Numerous and diverse sensor module interface conversion into unified interface, is converted to the general-purpose interface of standard agreement, so that sensor by block Module can charged realization plug and pull, sensor module can arbitrarily dock each interface.Reduce what frequently power-off was brought simultaneously It is constant.Sensor module is converted to general-purpose interface by conversion equipment and improves timely recovery capability of the system to disaster, extension Property and flexibility.Numerous and diverse sensor interface is converted into unified interface, sensor module by sensor module by conversion chip Each matched mating interface can be arbitrarily docked, improves the versatility of docking.

Description of the drawings

Fig. 1 is the schematic diagram of the intelligent terminal of one embodiment of the utility model；

Fig. 2 is the schematic diagram of the intelligent terminal of another embodiment of the utility model；

Fig. 3 is main control chip U2, the sensor control chip U3 and WIFI of the intelligent terminal of one embodiment of the utility model The partial circuit schematic diagram of module；

Fig. 4 is the dust detection sensor of the intelligent terminal of one embodiment of the utility model, Temperature and Humidity sensor Partial circuit schematic diagram；

Fig. 5 is the part of the power supply breaking circuit of the dust detection sensor of the intelligent terminal of one embodiment of the utility model Circuit diagram；

Fig. 6 is the partial circuit schematic diagram of the formaldehyde examination module group unit of one embodiment of the utility model；

Fig. 7 is the partial circuit schematic diagram of the Carbon Monoxide Detection module group unit of one embodiment of the utility model；

Fig. 8 is that the carbon dioxide of one embodiment of the utility model detects the partial circuit schematic diagram of module group unit；

Fig. 9 is the partial circuit schematic diagram of the oxygen detection module group unit of one embodiment of the utility model.

Specific embodiment

As shown in Figure 1, the intelligent terminal 100 of one embodiment of the utility model, including：Main control module 40 and main control module 40 connections are simultaneously controlled the sensor module being detected by main control module 40 and are connected and by the main control module with main control module 40 The communication module 60 that 40 controls carry out data transmission.Sensor module includes：One or more module group units 20.Module group unit 20 Including：Common bottom plate 22, gas detection sensor 24 are connected and receiving sensor 24 is detected and data and turned with sensor 24 The conversion equipment 26 changed, the general-purpose interface 28 for being connected with conversion equipment 26 and receiving 26 change data of conversion equipment.General bottom Plate 22 carries sensor 24 and conversion equipment 26.The general-purpose interface of each gas detection module group unit is unified standard agreement General-purpose interface.

As seen in figures 2 and 3, main control module 40 includes：The main control chip U2 of integrated treatment and with main control chip U2 communicate connect It connects and connects all module group units and gather the sensor control chip U3 of the module group unit data.Main control chip U2's P1.7/SCS ends, P1.6/SCK ends, P1.5/SDI ends, P1.4/SDO ends are to carry out data friendship with the sensor control chip U3 Mutual SPI communication buses port.Communication module 60 includes：WIFI module 62.The P0.4/RST ends of main control chip U2, P0.3/ UTX/T1 ends, P0.2/URX/TC2 ends, P0.1/INT1/TC1 ends and WIFI module connection communication.Wherein main control chip U2's P0.4/RST ports reset for WIFI module as delivery outlet and distribution use；The P0.3/UTX/T1 of main control chip U2, P0.2/URX/TC2 ports are UART data communication interfaces, are used as data communication；The P0.1/INT1/TC1 of main control chip U2 As input port, used for detecting 62 current state of WIFI module.WIFI module 62 includes：WIFI chips U4.

Further, the intelligent terminal 100 of the present embodiment further includes：With the human-computer interaction module of main control chip U2 connection communications 30th, brightness acquisition module 50, display module 70.Communication module 60 further includes：Infrared module 64.The P5.2/ of main control chip U2 AIN10/PWM1 ends are the ADC voltage samples interface of acquisition ambient brightness and are connected interaction with brightness acquisition module 50.Master control core P1.3/SCL ports, the P1.2/SDA ports of piece U2 is the input port that data communication is carried out with human-computer interaction module 30.

The P0.0/INT0/TC0 ends of main control chip U2 are used as input port for infrared receiver.Main control chip U2's P5.3/AIN11/PWM2 ports are PWM delivery outlets, for infrared emission.

P1.3/SCL, P1.2/SDA port of main control chip U2 is input port 1, for the touch IC with human-computer interaction module Data output carry out data communication.The P1.1/EIDA of main control chip U2, P1.0/EICK port emulate for main control chip U2 Debugging interface, for artificial debugging.The P5.2/AIN10/PWM1 of main control chip U2 is ADC voltage sample interfaces, for gathering ring Border brightness uses.P5.0/AIN8, P4.7/AIN7, P4.6/AIN6, P4.5/AIN5 of main control chip U2, P4.4/AIN4 port It is virtually spi bus all to be arranged to common GPIO, drives and use for display screen.The P4.3/AIN3 of main control chip U2, P4.2/AIN2, P4.1/AIN1, P4.0/AIN0 port are both configured to common GPIO, are virtually spi bus, for character library modulus Acquisition uses.The AVEREFH ports of main control chip U2 are used for reference voltage, and voltage is supply voltage VDD.

P0.5/XOUT, P0.6/XIN external crystal-controlled oscillation of main control chip U2, provides clock source for MCU, is provided for system More stable more accurately clock source.

As shown in Figures 2 to 5, further, the sensor control chip U3 of the present embodiment is also associated with dust detection sensing Device, Temperature and Humidity sensor U80.P1.3/SCL ports, the P1.2/SDA ports of sensor control chip U3 is and humiture Detection sensor U80 carries out data communication iic bus port.The serial data end SDA accesses of Temperature and Humidity sensor U80 pass The sensor control chip U3 is accessed in P1.2/SDA ports, its another Tiao Zhi road of sensor control chip U3 by resistance R60 Vdd terminal；The ground terminal VSS ground connection of Temperature and Humidity sensor U80, its another Tiao Zhi road pass through two shunt capacitance C28 and C29 It is linked into its supply voltage end VDD；Another Tiao Zhi roads access sensors of supply voltage end VDD of Temperature and Humidity sensor U80 Control the vdd terminal of chip U3；The serial clock terminal SCL of Temperature and Humidity sensor U80 is linked into sensor control chip U3's P1.3/SCL ports.

The dust detection sensor of the present embodiment is connected with power supply breaking circuit.Power supply breaking circuit includes：Control break-make The metal-oxide-semiconductor Q10 of dust detection sensor power supply, the prime for metal-oxide-semiconductor Q10 amplify the triode Q11 of driving, are arranged on three Pole pipe base stage for current limliting triode Q11 current-limiting resistance R57, be arranged on metal-oxide-semiconductor Q10 drain electrode and grid between for Pull-up acts on the pull-up resistor R55 of the grid of metal-oxide-semiconductor Q10, the grid for being arranged on metal-oxide-semiconductor Q10 and the triode Q11 current collections For metering function in the current-limiting resistance R65 of the grid of the metal-oxide-semiconductor Q10 and filter for filtering out-put supply between pole Ripple capacitance C23 and C24.

1 foot of the interface J23 of the dust detection sensor of the present embodiment by being linked into 5V power supplies after resistance R64, Its 2 foot accesses the defeated of power supply breaking circuit by being linked into 5V power supplies, 4 feet access 5V power supplies after resistance R63 Enter end.The 3 feet ground connection of the interface J23 of dust detection sensor.

The dust detection sensor of the present embodiment is also associated with level shifting circuit.The level conversion of dust detection sensor Circuit includes：Electrical level transferring chip U90.The ground terminal GND ground connection of electrical level transferring chip U90, electrical level transferring chip U90's Power voltage terminal VDD, the SCL1 end that VREF1 terminates into sensor control chip U3 passes through resistance by resistance R61, SDA1 ends R62 is linked into the power voltage terminal VDD of sensor control chip U3.The SCL2 ends of electrical level transferring chip U90 are linked into dust inspection 1 foot of the interface J23 of sensor is surveyed, 2 ends of SDA of electrical level transferring chip U90 are linked into the interface J23 of dust detection sensor 2 feet, the VREF2 ends of electrical level transferring chip U90 are grounded by capacitance C27, and the EN ends of electrical level transferring chip U90 pass through resistance R59 is linked into 5V power supplies.

The P1.3/SCL ports of sensor control chip U3, P1.2/SDA ports are into line number with Temperature and Humidity sensor According to communication iic bus port.

P03/UTX/T1, P0.2/UTX/TC2 port of sensor control chip U3 is UATR, for dust to be controlled to sense Device data acquisition, the P0.0/INT0/TC1 ports of sensor control chip U3 are used as delivery outlet, for dust sensor power supply control System uses.P1.7/SCS, P1.6/SCK, P1.5/SDI, P1.4/SDO port of sensor control chip U3 is total for SPI communications Line, for carrying out data communication with main control chip U2.P1.3/SCL, P1.2/SDA of sensor control chip U3 is iic bus, For carrying out data communication with Temperature Humidity Sensor.P1.1/EIDA, P1.0/EICK port of sensor control chip U3 is imitative True debugging interface, for artificial debugging.P5.3/ANI11/PWM2, P5.2/AIN10/PWM1 of sensor control chip U3, P5.1/AIN9/PWM0 ports export for PWM, for LED to be driven to show dust pollution instruction.Sensor control chip U3's P5.0/AIN8、P4.7/AIN7、P4.6/AIN6、P4.5/AIN5、P4.4/AIN4、P4.3/AIN3、P4.2/AIN2、P4.1/ AIN1, P4.0/AIN0 port use for spi bus, for the general-purpose communication interface of multiple and different sensor modules.Sensor control The AVEREFH of coremaking piece U3 is used for reference voltage, and voltage is supply voltage VDD.The P0.4/RST ends of sensor control chip U3 Mouth is delivery outlet, for fan power to be controlled to control.

The external crystal-controlled oscillation that P0.5/XOUT, P0.6/XIN port of sensor control chip U3 is set, clock is provided for MCU Source provides more stable more accurately clock source for system.

Further, the sensor control chip U3 of the present embodiment is also associated with Temperature and Humidity sensor.

In a preferred embodiment, the general-purpose interface 28 of the present embodiment is the standard agreement number that receiving converter 26 is converted According to hot plug general-purpose interface.Further, it is preferred that the general-purpose interface 28 of the present embodiment is spi bus protocol interface.

SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) bus protocol interface can realize that a master is more From communication modes, plug and pull, a variety of advantages such as bus is expansible.

Further, the module group unit of the present embodiment further includes：It is arranged on common bottom plate and powers for break-make sensor Power supply circuit and be arranged on common bottom plate 22 and access the reference voltage circuit in conversion equipment 26.

As shown in fig. 6, further, the sensor 24 of the present embodiment includes：Formaldehyde examination sensor.The conversion of the present embodiment Device 26 includes：It is connected with formaldehyde examination sensor and receives the conversion chip U8 of formaldehyde examination sensor detection data.It is logical Included with interface 28：It is connected with conversion chip U8 and receives the general-purpose interface J17 of the transmission data of conversion chip U8.Common bottom plate 22 include：Carry the formaldehyde examination common bottom plate 222 of the formaldehyde examination sensor and conversion chip U8.

The conversion chip U8 of the present embodiment is preferably using loose writing brush 8BitMCU, model SN8P27E65.Conversion chip U8 5,6,7,8 feet be spi bus port.Wherein, 5 feet of conversion chip U8, that is, P1.7/SCS access general-purpose interface J17 13 and 14 feet, 11 and 12 feet of 6 feet, that is, P1.6/SCK access general-purpose interfaces J17 of conversion chip U8,7 feet of conversion chip U8 are 9 and 10 feet of P1.5/SDI access general-purpose interfaces J17, the 7 of 8 feet, that is, P1.4/SDO access general-purpose interfaces J17 of conversion chip U8 And 8 foot.11 feet of conversion chip U8 and 12 feet, that is, P1.1/EIDA and P1.0/EICK are artificial debugging interface, are adjusted for emulating Examination.

14 feet of conversion chip U8, that is, P5.2 is used to control the power supply power supply break-make of formaldehyde sensor, and high level module leads to Electricity, the power-off of low level module.16 feet of conversion chip U8, that is, P5.0 is used to detect the voltage output of formaldehyde examination sensor.Turn The 17 feet i.e. P4.7 for changing chip U8 is used for module testing mouth.24 feet of conversion chip U8, that is, P4.0 calibrates for formaldehyde sensor. 25 feet of conversion chip U8, that is, AVREFH feet are+3V reference voltages, are linked into the first reference voltage circuit.

As shown in fig. 6, the interface JP2 of the formaldehyde examination sensor of the present embodiment, 1 foot is checkout terminal, passes through resistance Correction bit P4.0 i.e. 24 feet of R47 access conversion chips U8.2 feet of the interface JP2 of formaldehyde examination sensor are analog-to-digital conversion end Mouth is linked into 16 feet of conversion chip U8.3 feet of the interface JP2 of formaldehyde examination sensor are ground terminal, are grounded.Formaldehyde is examined 4 feet of the interface JP2 of sensor are surveyed as voltage input end, device is linked into power supply circuit；The interface JP2's of formaldehyde examination sensor 5 feet are linked into 1 foot of conversion chip U8 for data input pin, by R49；6 feet of the interface JP2 of formaldehyde examination sensor are number According to output terminal, its be linked by resistance R54 2 feet of conversion chip U8；7 feet of the interface JP2 of formaldehyde examination sensor are PWM (pulse width modulation) is held, and is linked into 15 feet of conversion chip U8.

Further, the power supply circuit of the present embodiment includes being arranged on formaldehyde examination common bottom plate and break-make formaldehyde examination passes The formaldehyde examination sensor feed circuit of sensor power supply.Formaldehyde examination sensor feed circuit includes：Control the inspection of break-make formaldehyde Survey the metal-oxide-semiconductor Q11 of the sensor power supply and triode Q13 of the prime amplification driving for metal-oxide-semiconductor Q11.

Further, the formaldehyde examination sensor feed circuit of the present embodiment further includes：For the current limliting of current limliting triode Q13 Resistance R67, for pull up act on metal-oxide-semiconductor Q11 grid pull-up resistor R59, for metering function in the metal-oxide-semiconductor Q11 Grid current-limiting resistance R65 and filter capacitor C29 and C31 for filtering out-put supply.

Further, the triode Q13 base stages of the present embodiment are linked into 14 feet of conversion chip U8 by current-limiting resistance R67, Pull-up resistor R59 is arranged between drain electrode and the grid of metal-oxide-semiconductor Q11, the common port of the drain electrode of pull-up resistor R59 and metal-oxide-semiconductor Q11 It accesses in 5V power supplies.Filter capacitor C29 is in parallel with C31, its common port one end ground connection, the branch access institute of the other end State source electrode, voltage input end i.e. 4 feet of interface JP2 of another branch access formaldehyde examination sensor of metal-oxide-semiconductor Q11.

Further, the reference voltage of the present embodiment includes the first reference voltage being arranged on formaldehyde examination common bottom plate electricity Road.First reference voltage circuit of the present embodiment includes：Controllable accurate source of stable pressure U10, for divide the partial pressure current limliting of current limliting electricity Resistance R60, for dividing the divider resistance R63 of controllable accurate source of stable pressure U10 and R69 and for filtering the reference voltage of output Filter capacitor C27.

The cathode of the controllable accurate source of stable pressure U10 of the present embodiment accesses power supply by current-limiting resistor voltage divider R60.Controllably The cathode of precision voltage regulator U10 is linked into 25 feet of conversion chip U8, controllable accurate source of stable pressure with the common port of filter capacitor C27 The anode of U10 and the common end grounding of divider resistance R69, filter capacitor C27 be connected in parallel on the anode of controllable accurate source of stable pressure U10 with Between cathode.

The formaldehyde examination sensor, conversion chip U8, general-purpose interface J17, formaldehyde examination sensor power supply electricity of the present embodiment Road, the first reference voltage circuit, formaldehyde examination common bottom plate form formaldehyde examination module group unit and are formed as a module group unit.

As shown in fig. 7, further, the sensor 24 of the present embodiment includes：Sensor for detecting carbon monoxide.Conversion equipment bag Include the conversion chip U9 that sensor for detecting carbon monoxide detection data are connected and received with sensor for detecting carbon monoxide.It is general Interface 28 includes：It is connected with conversion chip U9 and receives the general-purpose interface J18 of the transmission data of conversion chip U9.Common bottom plate bag It includes：Carry sensor for detecting carbon monoxide and the Carbon Monoxide Detection common bottom plate 224 of conversion chip U9.

Further, the power supply circuit of the present embodiment, which further includes, is arranged on Carbon Monoxide Detection common bottom plate simultaneously one oxygen of break-make Change the sensor for detecting carbon monoxide power supply circuit of carbon detection sensor power supply.Reference voltage circuit includes the second reference voltage Circuit.

The conversion chip U9 of the present embodiment is preferably using loose writing brush 8BitMCU, model SN8P27E65.Conversion chip U9 5,6,7,8 feet be spi bus port.Wherein, 5 feet of conversion chip U9, that is, P1.7/SCS access general-purpose interface J18 13 and 14 feet, 6 feet, that is, P1.6/SCK of conversion chip U9 terminate 11 and 12 feet into general-purpose interface J18, and 7 feet of conversion chip U9 are 9 and 10 feet of P1.5/SDI access general-purpose interfaces J18, the 7 of 8 feet, that is, P1.4/SDO access general-purpose interfaces J18 of conversion chip U9 And 8 foot.11 feet of conversion chip U9 and 12 feet, that is, P1.1/EIDA and P1.0/EICK are artificial debugging interface, are adjusted for emulating Examination.

14 feet of conversion chip U9, that is, P5.2 is used to control the power supply power supply break-make of sensor for detecting carbon monoxide, high level Module is powered, the power-off of low level module.16 feet of conversion chip U9, that is, P5.0 is linked into sensor for detecting carbon monoxide power supply electricity Road.17 feet of conversion chip U8, that is, P4.7 is used for module testing mouth.25 feet of conversion chip U9, that is, AVREFH ends are+3V with reference to electricity Pressure, is linked into the second reference voltage circuit.

The sensor for detecting carbon monoxide power supply circuit of the present embodiment includes：Break-make sensor for detecting carbon monoxide is controlled to supply Electricity metal-oxide-semiconductor Q12 and for metal-oxide-semiconductor Q12 prime amplification driving triode Q14, the current limliting for current limliting triode Q14 Resistance R68, for pull up act on the metal-oxide-semiconductor Q12 grid pull-up resistor R61, for metering function in metal-oxide-semiconductor Q12 Grid current-limiting resistance R66 and filter capacitor C30 and C32 for filtering out-put supply.

Second reference voltage circuit of the present embodiment includes：Controllable accurate source of stable pressure U11, limited for dividing the partial pressure of current limliting Leakage resistance R62, for dividing the divider resistance R64 of controllable accurate source of stable pressure U11 and R70 and for filtering exported reference The filter capacitor C28 of voltage.

The sensor for detecting carbon monoxide of the present embodiment, conversion chip U9, general-purpose interface J18, Carbon Monoxide Detection sensing Device power supply circuit, Carbon Monoxide Detection common bottom plate 224, the second reference voltage circuit form Carbon Monoxide Detection module group unit simultaneously Form a module group unit.

As shown in figure 8, further, the sensor 24 of the present embodiment includes：Carbon dioxide detection sensor.Conversion equipment 26 Including：It is connected with carbon dioxide detection sensor and receives the conversion chip U12 of carbon dioxide detection sensor detection data. General-purpose interface 28 includes：It is connected with conversion chip U12 and receives the general-purpose interface J21 of the transmission data of conversion chip U12.

The common bottom plate 22 of the present embodiment includes：Carry carbon dioxide detection sensor and the titanium dioxide of conversion chip U12 Carbon detects common bottom plate 226.

The power supply circuit of the present embodiment includes being arranged on carbon dioxide detection common bottom plate 226 and the inspection of break-make carbon dioxide Survey the carbon dioxide detection sensor power supply circuit of sensor power supply.The reference voltage circuit of the present embodiment includes：3rd ginseng Examine potential circuit.Carbon dioxide detection sensor power supply circuit includes：Control the MOS of break-make carbon dioxide detection sensor power supply Pipe Q15 and for metal-oxide-semiconductor Q15 prime amplification driving triode Q17, for current limliting triode Q17 current-limiting resistance R89, For pull up act on the metal-oxide-semiconductor Q15 grid pull-up resistor R81, for metering function in the grid of the metal-oxide-semiconductor Q15 The current-limiting resistance R87 of pole and filter capacitor C41 and C43 for filtering out-put supply.

3rd reference voltage circuit of the present embodiment includes：Controllable accurate source of stable pressure U14, limited for dividing the partial pressure of current limliting Leakage resistance R82, for the divider resistance R85 and R91 that divides the input voltage of the controllable accurate source of stable pressure U11 and for filtering The filter capacitor C39 of the reference voltage of ripple output.

The carbon dioxide detection sensor, conversion chip U12, general-purpose interface J21, carbon dioxide detection sensing of the present embodiment Device power supply circuit, the 3rd reference voltage circuit and carbon dioxide detection common bottom plate 226 form carbon dioxide detection module group unit And form a module group unit.

As shown in figure 9, further, the sensor 24 of the present embodiment includes：Oxygen detection sensor.The conversion of the present embodiment Device 26 includes：It is connected with oxygen detection sensor and receives the conversion chip U13 of oxygen detection sensor detection data.It is logical Included with interface 28：It is connected with conversion chip U13 and receives the general-purpose interface J22 of the transmission data of conversion chip U13.General bottom Plate 22 includes：Carry oxygen detection sensor and the oxygen detection common bottom plate 228 of conversion chip U13.The power supply of the present embodiment Circuit further include be arranged on oxygen detection common bottom plate 228 and the oxygen detection of break-make oxygen detection sensor power supply sense Device power supply circuit.The reference voltage circuit of the present embodiment includes：4th reference voltage electric current.Oxygen detection sensor feed circuit Including：Control three poles of the metal-oxide-semiconductor Q16 of break-make oxygen detection sensor power supply and the prime amplification driving for metal-oxide-semiconductor Q16 Pipe Q18, the current-limiting resistance R90 for current limliting triode Q18, the pull-up resistor for pulling up the grid for acting on metal-oxide-semiconductor Q16 R83, for metering function in the current-limiting resistance R88 of the grid of metal-oxide-semiconductor Q16 and filter capacitor C42 for filtering out-put supply And C44.4th reference voltage circuit includes：Controllable accurate source of stable pressure U15, for divide the current-limiting resistor voltage divider R84 of current limliting, use In the divider resistance R86 and R92 of the input voltage for dividing the controllable accurate source of stable pressure U15 and for filtering the reference exported The filter capacitor C40 of voltage.

The oxygen detection sensor, conversion chip U13, general-purpose interface J22, oxygen detection sensor power supply electricity of the present embodiment Road, the 4th reference voltage circuit and oxygen detection common bottom plate 228 form oxygen detection module group unit and are formed as a module Unit.

The general-purpose interface J22, general-purpose interface J21, general-purpose interface J18, general-purpose interface J17 of the present embodiment are unified standard The general-purpose interface of agreement.Preferably, the present embodiment general-purpose interface J22, general-purpose interface J21, general-purpose interface J18, general-purpose interface J17 For SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) bus protocol interface.

The intelligent terminal of the utility model is communicated the data of main control chip with backstage Cloud Server by communication module 60, Environment is monitored by multiple sensors module to obtain monitoring data, and monitoring data are passed by wireless communication module 60 Give Cloud Server communication in backstage connected to it；Sensor can be matched, can arbitrarily dock each sensing as needed Device module interface and sensor module can carry out charged realization plug and pull；By modular converter by numerous and diverse sensor module Interface conversion is converted to the general-purpose interface of standard agreement into unified interface, so as to sensor module can charged realization plug and pull, Sensor module can arbitrarily dock each interface.

For the conversion equipment of the utility model, input data is the data of sensor acquisition, and output data is It is converted into the sensing data of standard agreement.Common bottom plate is used to carry sensor and conversion equipment；Hot plug general-purpose interface For the data that receiving converter is sent, hot plug general-purpose interface charged can support plug, so as to which sensor module can be charged Realize plug and pull, the frequent power-off of reduction brings constant.Sensor module hot plug improves system to the timely extensive of disaster Reactivation power, autgmentability and flexibility etc..Numerous and diverse sensor interface is passed through conversion chip by the sensor module of the utility model It is converted into unified interface.And due to using hot plug general-purpose interface, sensor module can charged realization plug and pull.

The sensor module of the utility model is by the interface conversion of sensor into after general-purpose interface, improving versatility, expand Malleability and flexibility etc..After sensor increases general-purpose interface conversion equipment, the general of any one agreement can be arbitrarily docked Interface.

Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. a kind of intelligent terminal, which is characterized in that including：Main control module is connected with the main control module and by main control module control It makes the sensor module being detected and is connected and is carried out data transmission by the master control module controls logical with the main control module Module is interrogated, the sensor module includes：One or more module group units, the module group unit include：Common bottom plate, gas inspection Sensor is surveyed, is connected with the gas detection sensor and is received turn that the gas detection sensor detects data and converted Changing device, the general-purpose interface for being connected with conversion equipment and receiving the conversion equipment change data, the common bottom plate carry gas Detection sensor and conversion equipment, the general-purpose interface of each gas detection module group unit connect for the general of unified standard agreement Mouthful.

2. intelligent terminal according to claim 1, it is characterised in that：The main control module includes：The master control of integrated treatment Chip U2 and the biography for connecting and connecting all module group units and the acquisition module group unit data is communicated with the main control chip U2 Sensor control chip U3；P1.7/SCS ends, P1.6/SCK ends, P1.5/SDI ends, the P1.4/SDO ends of the main control chip U2 is The SPI communication buses port of data interaction is carried out with the sensor control chip U3；The communication module includes：WIFI moulds Block, the P0.4/RST ends of the main control chip U2, P0.3/UTX/T1 ends, P0.2/URX/TC2 ends, P0.1/INT1/TC1 ends with WIFI module connection communication.

3. intelligent terminal according to claim 2, it is characterised in that：It further includes：With the main control chip connection communication Human-computer interaction module, brightness acquisition module, display module, the communication module further include：

Infrared module, the P5.2/AIN10/PWM1 ends of the main control chip U2 are the ADC voltage sample interfaces of acquisition ambient brightness And be connected interaction with the brightness acquisition module, the P1.3/SCL ports of the main control chip U2, P1.2/SDA ports for institute State the input port that human-computer interaction module carries out data communication.

4. intelligent terminal according to claim 3, it is characterised in that：The sensor control chip U3 is also associated with dust Detection sensor, Temperature and Humidity sensor, P1.3/SCL ports, the P1.2/SDA ports of the sensor control chip U3 are Data communication iic bus port, the serial data end SDA of the Temperature and Humidity sensor are carried out with Temperature and Humidity sensor Access the P1.2/SDA ports of the sensor control chip U3, the sensor is accessed in its another Tiao Zhi road by resistance R60 The vdd terminal of chip U3 is controlled, the ground terminal VSS ground connection of the Temperature and Humidity sensor, its another Tiao Zhi road are in parallel by two Capacitance is linked into its supply voltage end VDD, another Tiao Zhi roads access institutes of supply voltage end VDD of the Temperature and Humidity sensor The vdd terminal of sensor control chip U3 is stated, the serial clock terminal SCL of the Temperature and Humidity sensor is linked into the sensor Control the P1.3/SCL ports of chip U3；

The dust detection sensor is connected with power supply breaking circuit, and the power supply breaking circuit includes：Control powder described in break-make The metal-oxide-semiconductor Q10 of dirt detection sensor power supply, the prime for the metal-oxide-semiconductor Q10 amplify the triode Q11 of driving, are arranged on institute State transistor base for current limliting triode Q11 current-limiting resistance R57, be arranged on the metal-oxide-semiconductor Q10 drain electrode and grid it Between for pull-up act on the metal-oxide-semiconductor Q10 grid pull-up resistor R55, be arranged on the grid of the metal-oxide-semiconductor Q10 with It in the current-limiting resistance R65 of the grid of the metal-oxide-semiconductor Q10 and is used for for metering function between the triode Q11 collectors Filter the filter capacitor C23 and C24 of out-put supply.

5. intelligent terminal according to claim 1, it is characterised in that：The general-purpose interface turns to receive the conversion equipment The hot plug general-purpose interface of the standard Protocol Data changed, the module group unit further include：It is arranged on the common bottom plate and leads to The reference voltage electricity that the power supply circuit of link sensor power supply and being arranged on is connected on the common bottom plate with the conversion equipment Road.

6. intelligent terminal according to claim 5, it is characterised in that：The gas detection sensor includes：

Formaldehyde examination sensor, the conversion equipment include formaldehyde examination biography is connected and received with the formaldehyde examination sensor Sensor detects the conversion chip U8 of data, and the general-purpose interface includes：It is connected with the conversion chip U8 and receives the conversion The general-purpose interface J17 of the transmission data of chip U8, the common bottom plate include：Carry the formaldehyde examination sensor and conversion core The formaldehyde examination common bottom plate of piece U8.

7. intelligent terminal according to claim 6, it is characterised in that：The power supply circuit includes being arranged on the formaldehyde inspection It surveys on common bottom plate and the formaldehyde examination sensor feed circuit of break-make formaldehyde examination sensor power supply, the formaldehyde examination passes Sensor power supply circuit includes：Control the metal-oxide-semiconductor Q11 of formaldehyde examination sensor power supply described in break-make and for the metal-oxide-semiconductor Q11 Prime amplification driving triode Q13, for current limliting triode Q13 current-limiting resistance R67, for pull up act on it is described The pull-up resistor R59 of the grid of metal-oxide-semiconductor Q11, for metering function in the current-limiting resistance R65 of the grid of the metal-oxide-semiconductor Q11 and For filtering the filter capacitor C29 and C31 of out-put supply, the triode Q13 base stages are linked into described by current-limiting resistance R67 14 feet of conversion chip U8, the pull-up resistor R59 are arranged between drain electrode and the grid of the metal-oxide-semiconductor Q11, the pull-up electricity Hinder the common port access power supply of the drain electrode of the R59 and metal-oxide-semiconductor Q11；The filter capacitor C29 is in parallel with C31, its common port one End ground connection, a branch of the other end access the source electrode of the metal-oxide-semiconductor Q11, another branch access formaldehyde examination sensing The voltage input end of device, the reference voltage circuit include the first reference voltage being arranged on the formaldehyde examination common bottom plate Circuit, first reference voltage circuit include：Controllable accurate source of stable pressure U10, the current-limiting resistor voltage divider for dividing current limliting R60, exported for the divider resistance R63 and R69 that divides the input voltage of the controllable accurate source of stable pressure U10 and for filtering Reference voltage filter capacitor C27, the controllable accurate source of stable pressure U10 cathode pass through current-limiting resistor voltage divider R60 access electricity Source, the cathode of the controllable accurate source of stable pressure U10 are linked into the 25 of the conversion chip U8 with the common port of filter capacitor C27 Foot, the anode of the controllable accurate source of stable pressure U10 and the common end grounding of divider resistance R69, the filter capacitor C27 are connected in parallel on Between the anode and cathode of the controllable accurate source of stable pressure U10；The formaldehyde examination sensor, conversion chip U8, general-purpose interface J17, formaldehyde examination sensor feed circuit, the first reference voltage circuit, formaldehyde examination common bottom plate form formaldehyde examination module Unit is simultaneously formed as a module group unit.

8. intelligent terminal according to claim 5, it is characterised in that：The gas detection sensor includes：Carbon monoxide Detection sensor, the conversion equipment include Carbon Monoxide Detection biography is connected and received with the sensor for detecting carbon monoxide Sensor detects the conversion chip U9 of data, and the general-purpose interface includes：It is connected with the conversion chip U9 and receives the conversion The general-purpose interface J18 of the transmission data of chip U9, the common bottom plate include：It carries the sensor for detecting carbon monoxide and turns Change the Carbon Monoxide Detection common bottom plate of chip U9；The power supply circuit includes being arranged on the Carbon Monoxide Detection common bottom plate Upper and break-make sensor for detecting carbon monoxide power supply sensor for detecting carbon monoxide power supply circuit, the reference voltage circuit Including：The second reference voltage circuit being connected with the conversion chip U9, the sensor for detecting carbon monoxide power supply circuit bag It includes：It controls the metal-oxide-semiconductor Q12 of sensor for detecting carbon monoxide power supply described in break-make and amplifies for the prime of the metal-oxide-semiconductor Q12 The triode Q14 of driving, the grid that the metal-oxide-semiconductor Q12 is acted on for the current-limiting resistance R68 of current limliting triode Q14, for pull-up The pull-up resistor R61 of pole, exported for metering function in the current-limiting resistance R66 of the grid of the metal-oxide-semiconductor Q12 and for filtering The filter capacitor C30 and C32 of power supply, second reference voltage circuit include：Controllable accurate source of stable pressure U11, limited for dividing The current-limiting resistor voltage divider R62 of stream, for the divider resistance R64 and R70 that divides the controllable accurate source of stable pressure U11 and for filtering The filter capacitor C28 of the reference voltage of ripple output；The sensor for detecting carbon monoxide, conversion chip U9, general-purpose interface J18, Sensor for detecting carbon monoxide power supply circuit, Carbon Monoxide Detection common bottom plate, the second reference voltage circuit form carbon monoxide It detects module group unit and forms a module group unit.

9. intelligent terminal according to claim 8, it is characterised in that：The gas detection sensor includes：Carbon dioxide Detection sensor, the conversion equipment include carbon dioxide detection biography is connected and received with the carbon dioxide detection sensor Sensor detects the conversion chip U12 of data, and the general-purpose interface includes：It is connected with the conversion chip U12 and receives described turn The general-purpose interface J21 of the transmission data of chip U12 is changed, the common bottom plate includes：Carry the carbon dioxide detection sensor And the carbon dioxide detection common bottom plate of conversion chip U12；The power supply circuit includes being arranged on the carbon dioxide and detecting leading to With simultaneously the carbon dioxide detection sensor power supply circuit of break-make carbon dioxide detection sensor power supply, the reference are electric on bottom plate Volt circuit includes：Access the 3rd reference voltage circuit of the reference voltage end of the conversion chip U12, the carbon dioxide detection Sensor feed circuit includes：Control the metal-oxide-semiconductor Q15 of carbon dioxide detection sensor power supply described in break-make and for the MOS The triode Q17 of the prime amplification driving of pipe Q15, acted on for the current-limiting resistance R89 of current limliting triode Q17, for pulling up The pull-up resistor R81 of the grid of the metal-oxide-semiconductor Q15, for metering function in the current-limiting resistance of the grid of the metal-oxide-semiconductor Q15 R87 and filter capacitor C41 and C43 for filtering out-put supply, the 3rd reference voltage circuit include：Controllable accurate is steady Potential source U14, the current-limiting resistor voltage divider R82 for dividing current limliting, the input voltage for dividing the controllable accurate source of stable pressure U11 Divider resistance R85 and R91 and filter capacitor C39 for filtering the reference voltage of output；The carbon dioxide detection sensing Device, conversion chip U12, general-purpose interface J21, carbon dioxide detection sensor power supply circuit, the 3rd reference voltage circuit and dioxy Change carbon detection common bottom plate to form carbon dioxide detection module group unit and form a module group unit.

10. intelligent terminal according to claim 5, it is characterised in that：The gas detection sensor includes：Oxygen detection Sensor, the conversion equipment include oxygen detection sensor detection data are connected and received with the oxygen detection sensor Conversion chip U13, the general-purpose interface includes：It is connected with the conversion chip U13 and receives the biography of the conversion chip U13 The general-purpose interface J22 of transmission of data, the common bottom plate include：Carry the oxygen detection sensor and the oxygen of conversion chip U13 Gas detects common bottom plate；The power supply circuit includes being arranged on the oxygen detection common bottom plate and break-make oxygen detection sensing The oxygen detection sensor feed circuit of device power supply, the reference voltage circuit include：Access the ginseng of the conversion chip U13 The 4th reference voltage circuit of voltage end is examined, the oxygen detection sensor feed circuit includes：Control oxygen inspection described in break-make It surveys the metal-oxide-semiconductor Q16 of sensor power supply and amplifies the triode Q18 of driving, for the prime of the metal-oxide-semiconductor Q16 for current limliting three The current-limiting resistance R90 of pole pipe Q18, for pull up act on the metal-oxide-semiconductor Q16 grid pull-up resistor R83, for current limliting make Filter capacitor C42 and C44 for the current-limiting resistance R88 of the grid of the metal-oxide-semiconductor Q16 and for filtering out-put supply, it is described 4th reference voltage circuit includes：Controllable accurate source of stable pressure U15, for divide current limliting current-limiting resistor voltage divider R84, for dividing The divider resistance R86 and R92 of the input voltage of the controllable accurate source of stable pressure U15 and the reference voltage for filtering output Filter capacitor C40；The oxygen detection sensor, conversion chip U13, general-purpose interface J22, oxygen detection sensor power supply electricity Road, the 4th reference voltage circuit and oxygen detection common bottom plate form oxygen detection module group unit and form a module group unit.