CN209373676U - Intelligent access control system - Google Patents

Abstract

The utility model relates to access control equipment technical fields, a kind of specifically intelligent access control system, including access controller, by the electric control lock and building speakerphone of access controller control opening and closing, the intelligent access control system further includes the connected Cloud Server of signal and users' mobile end, the Cloud Server is connected with access controller signal, the users' mobile end is used to send opening signal to Cloud Server, the Cloud Server is used for the opening signal issued to access controller transmission users' mobile end, the access controller includes the first simulator for simulating enabling key.The advantages of intelligent entrance guard provided by the utility model, includes but is not limited to: intelligent access control system provided by the utility model, when visitor arrives, house-owner remotely can open gate inhibition for visitor, it can be directly transformed on the basis of existing building gate inhibition, without removing to existing building gate inhibition, it is able to use that lower cost construction function is more perfect, the wider array of system of coverage area.

Description

Intelligent access control system

Technical field

The utility model relates to access control equipment technical field, a kind of specifically intelligent access control system.

Background technique

Existing buildings access control system is by controller, card reader, electric control lock, door open button, building speakerphone etc. Composition, a network access system is made of many gating devices, passes through RS485 bus and gate inhibition's net between each gating device Network controller is connected, and forms gate inhibition's network system, in which:

Controller: is handled for collecting the information that card reader transmits, and is issued instruction, is controlled the unlatching of electric control lock； It stores contactless card data: completing bus network savvy etc..

Card reader: reading the information on contactless card and be uploaded to controller, it can specially match, and can also match, as long as symbol Close interface requirement；Installation site is at low coverage outdoors.

IC contactless card (access card): being the IC contactless card for storing personal information, internal to contain a piece of integrated circuit And induction coil.When contactless card is close to card reader, the information of its storage inside is passed into card reader by way of induction, it is real The purpose now opened the door.

Electric control lock: being the actuator of gate inhibition, controls gate "ON", "Off" state.Installation site is doorframe in the room On upper or door leaf.

Building speakerphone: being the person of entering in room and the equipment into personnel, talking, and the button on intercom can be opened The switch at gate downstairs, installation site are in the room at the low coverage of door.

Existing intelligent card gate machine needs to configure corresponding smart card, at high cost since smart card quantity is big, therefore I State patent publication No. CN207148945U discloses a kind of access control system, using chip as access card due to chip in chip card UUID be that globally unique identifier and just can never be changed after being written into before factory, while UUID is public data, Access control is carried out using the UUID of chip in various chip cards in daily, access control system cost will be substantially reduced.

And with smart phone and intelligent door lock become increasingly popular and the rise of people place system, need to solve in room Interior nobody, without access card, the problem of also can enter room.China patent publication No. CN206451264U discloses a kind of hand Machine WIFI access controller and access control system, the unlatching of gate inhibition is realized by mobile phone, but only knows password in other words Only roomed user or owner's ability opening gate, still cannot be convenient for the entrance of visitor.

Existing building speakerphone circuit structure has been described in detail in " telephone principle and maintenance (second edition) ".Referring to figure 15, it is the line assumption diagram of prior art two-wire system building speakerphone, if there is kith and kin are visiting or not with contactless card, then need By the room number on controller, the building speakerphone into room initiates call request, is pressed and the position hook by personnel in room The off-hook button of connection realizes call, then presses the door open button connecting with the position unlock, ability by personnel in room again So that corridor gate is opened.The application improves on the basis of existing gate inhibition's structure, designs a kind of novel intelligent door Access control system.

Summary of the invention

Utility model aims to solve the deficiencies in the prior art, provide a kind of intelligent access control system, can be realized To the remote operation of access control system.

To achieve the goals above, it designs a kind of intelligent access control system, including access controller, is controlled by access controller The electric control lock and building speakerphone of opening and closing, the intelligent access control system further include that the connected Cloud Server of signal and user are mobile End, the Cloud Server are connected with access controller signal, and the users' mobile end is used to send to Cloud Server and open the door Signal, the Cloud Server are used for the opening signal issued to access controller transmission users' mobile end, gate inhibition's control Device processed includes the first simulator for simulating enabling key, for controlling institute by the first simulator after receiving opening signal The electric control lock stated is opened.

The utility model also has following preferred technical solution:

First simulator includes for simulating door opening action relay circuit, No. 1 pin connection of connector J1 To No. 1 pin of relay K1, No. 2 pins of connector J1 are connected to No. 3 pins and No. 4 pins of relay K1, connector No. 3 pins of J1 are connected to No. 6 pins of relay K1, and No. 5 pins of relay K1 are connected to the one end resistance R5 and diode The cathode of D4, the plus earth of diode D4, the other end of resistance R7 are connected to the collector of the one end resistance R1 and triode Q1, The resistance R1 other end connects the anode of light emitting diode D2, the cathode ground connection of light emitting diode D2, and the emitter of triode Q1 connects It is connected to the end VCC, the base stage of triode Q1 is connected to one end of resistance R11, and the other end of resistance R11 is connected to access controller Chip is controlled, connector J1 is connected at the door opening key of existing building speakerphone.

The users' mobile end is also used to send off hook signal to Cloud Server, and the access controller further includes using In the second simulator of simulation off-hook key, and pass through building talkback described in the control of the second simulator after receiving off hook signal Machine enters off hook state.

Second simulator includes the relay circuit for simulating off-hook movement, and No. 1 pin of connector J2 is connected to No. 1 pin of relay K2, No. 2 pins of connector J2 are connected to No. 3 pins and No. 4 pins of relay K2, connector J2 No. 3 pins be connected to No. 6 pins of relay K2, No. 5 pins of relay K2 are connected to the one end resistance R10 and diode D5 Cathode, the plus earth of diode D5, the other end of resistance R10 is connected to the collector of the one end resistance R4 and triode Q2, The resistance R4 other end connects the anode of light emitting diode D3, the cathode ground connection of light emitting diode D3, and the emitter of triode Q2 connects It is connected to the end VCC, the base stage of triode Q2 is connected to one end of resistance R13, and the other end of resistance R13 is connected to access controller Chip is controlled, connector J2 is connected at the talk button of existing building speakerphone.

The access controller is realized by single-chip microcontroller U2 and is controlled that single-chip microcontroller U2 is connected and passes through with WIFI module U4 signal WIFI module U4 is realized to be transmitted with the information of Cloud Server.

The model STM8S003F3 of the single-chip microcontroller U2, single-chip microcontroller U2 connect using connector J7 as external power supply port The voltage of 3.3V is provided for single-chip microcontroller U2 after plug-in unit J7 connection external power supply, No. 1 pin of connector J7 is as the end VCC, monolithic No. 9 pins of machine U2 as the end VCC, the end VCC of connector J7 be parallel with after being connected with the end VCC of single-chip microcontroller U2 resistance R12 and No. 18 pins of single-chip microcontroller U2 and No. 2 pins of connector J7 are connected to after capacitor C4, resistance R12, ground connection on rear side of capacitor C4 connects No. 3 pins of plug-in unit are grounded, series capacitance C3 after No. 4 pins of connector are connected with No. 4 pins of single-chip microcontroller U2, capacitor C3's Rear side is grounded, and is grounded after No. 8 pin series capacitance C10 of single-chip microcontroller U2.

The single-chip microcontroller U2 of the access controller realizes that the signal between Cloud Server connects by WIFI module, The model USR-C215 for the chip U4 that WIFI module uses, No. 6 pins of chip U4 and No. 2 pins of single-chip microcontroller U2, chip No. 3 pins of No. 5 pins connection single-chip microcontroller U2 of U4, to realize the data transmission between WIFI module and single-chip microcontroller U2.Institute The connector J7 that states while power input also is provided for WIFI module.And it is additionally provided between connector J7 and WIFI module WIFI power supply adapter circuit, referring to Fig. 6, No. 2 pins of chip U4 are parallel with resistance R8, capacitor C8 and resistance as the end VCC It is connected to the one end capacitor C7 and No. 4 pins of chip U4 on rear side of R5, resistance R8, is connected to the one end capacitor C6 and core on rear side of resistance R5 No. 3 pins of piece U4, the other end of the capacitor C7 other end, the capacitor C8 other end and capacitor C6 are grounded.

The beneficial effect of utility model

The advantages of intelligent entrance guard provided by the utility model, includes but is not limited to: intelligent door provided by the utility model Access control system, when visitor arrives, house-owner remotely can open gate inhibition for visitor, and in a preferred embodiment, visitor can pass through Building telephone set is conversed with house-owner, has the characteristics that flexibility well and hommization, improves the intelligence of access control system Degree can be changed.And this system has the good ratio of performance to price, can directly be transformed on the basis of existing building gate inhibition, Without removing to existing building gate inhibition, it is able to use that lower cost construction function is more perfect, the wider array of system of coverage area.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the intelligent access control system of the utility model in an embodiment.

Fig. 2 is the electrical schematic diagram of the utility model single-chip microcontroller in an embodiment.

Fig. 3 is the electrical schematic diagram of the external power supply port of the utility model in an embodiment.

Fig. 4 a is the interface circuit schematic diagram a of the utility model connector J7 in an embodiment.

Fig. 4 b is the interface circuit schematic diagram b of the utility model connector J7 in an embodiment.

Fig. 4 c is the interface circuit schematic diagram c of the utility model connector J7 in an embodiment.

Fig. 4 d is the interface circuit schematic diagram d of the utility model connector J7 in an embodiment.

Fig. 5 is the electrical schematic diagram of the utility model WIFI module in an embodiment.

Fig. 6 is the electrical schematic diagram of the utility model WIFI power supply adapter circuit in an embodiment.

Fig. 7 is the electrical schematic diagram of the utility model WIFI status indicator lamp in an embodiment.

Fig. 8 is the electrical schematic diagram a of the utility model rectifier circuit and DC modular circuit in an embodiment.

Fig. 9 is the electrical schematic diagram b of the utility model rectifier circuit and DC modular circuit in an embodiment.

Figure 10 is the electrical schematic diagram c of the utility model rectifier circuit and DC modular circuit in an embodiment.

Figure 11 is the relay circuit schematic diagram that the utility model is used to simulate door opening action in an embodiment.

Figure 12 is that the utility model is used to simulate off-hook actuating relay circuit diagram in an embodiment.

Figure 13 is the schematic diagram of the utility model power indicator circuit in an embodiment.

Figure 14 is the electrical schematic diagram that the utility model reserves key in an embodiment.

Figure 15 is the electrical schematic diagram of the prior art.

Figure 16 is the schematic diagram of the utility model connector J1 in an embodiment.

Figure 17 is the schematic diagram of the utility model connector J2 in an embodiment.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing, the people of the structure and principle of this device to this profession For be very clearly.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and do not have to In restriction the utility model.

Referring to Fig. 1, the intelligent access control system includes the connected Cloud Server of signal and users' mobile end, and user is mobile End can be connected for mobile phone or computer or other electronic equipments, the Cloud Server with access controller signal, the use Family mobile terminal is used to send opening signal or off hook signal to Cloud Server, and the Cloud Server is used to pass to access controller The opening signal that defeated users' mobile end issues, the access controller includes the first simulator and use for simulating enabling key To simulate the second simulator of off-hook key, for passing through the first simulator control electric control lock after receiving opening signal It opens, and off hook state is entered by the second simulator control building speakerphone after receiving off hook signal.It is described Access controller realize and control that single-chip microcontroller U2 is connected with WIFI module U4 signal and passes through WIFI module U4 reality by single-chip microcontroller U2 Now transmitted with the information of Cloud Server.

It introduces in present embodiment in detail below, the circuit structure of the intelligent access control system.

Referring to fig. 2, Fig. 3 and Fig. 4 a- Fig. 4 d, the model STM8S003F3 of the single-chip microcontroller U2, single-chip microcontroller U2 is to connect Plug-in unit J7 provides 3.3V after connector J7 connection external power supply for single-chip microcontroller U2 and entire access controller as external power supply port Voltage, as the end VCC, the end VCC is connected with connector J7 No. 1 pin of connector J7, No. 9 of single-chip microcontroller U2 pipes Foot is parallel with resistance R12 and capacitor C4, resistance after being connected with the end VCC of single-chip microcontroller U2 as the end VCC, the end VCC of connector J7 No. 18 pins of single-chip microcontroller U2 and No. 2 pins of connector J7, ground connection on rear side of capacitor C4, No. 3 pipes of connector are connected to after R12 Foot ground connection, the rear side ground connection of series capacitance C3, capacitor C3, single after No. 4 pins of connector are connected with No. 4 pins of single-chip microcontroller U2 It is grounded after No. 8 pin series capacitance C10 of piece machine U2.

Referring to Fig. 5, the single-chip microcontroller U2 of the access controller realizes the letter between Cloud Server by WIFI module Number connection, the model USR-C215 for the chip U4 that WIFI module uses, No. 2 pipes of No. 6 pins of chip U4 and single-chip microcontroller U2 Foot, No. 3 pins of No. 5 pins connection single-chip microcontroller U2 of chip U4, to realize the data between WIFI module and single-chip microcontroller U2 Transmission.The connector J7 also provides power input simultaneously for WIFI module.And between connector J7 and WIFI module Be additionally provided with WIFI power supply adapter circuit, referring to Fig. 6, No. 2 pins of chip U4 as the end VCC, be parallel with resistance R8, capacitor C8 and It is connected to the one end capacitor C7 and No. 4 pins of chip U4 on rear side of resistance R5, resistance R8, is connected to the one end capacitor C6 on rear side of resistance R5 And No. 3 pins of chip U4, the other end of the capacitor C7 other end, the capacitor C8 other end and capacitor C6 are grounded.

Referring to Fig. 7, the WIFI module is additionally provided with WIFI state instruction circuit for lamp, No. 10 pins of the chip U4 It is connected to the end VCC after being sequentially connected in series resistance R3 and a LED light, when chip U4 is successfully connected with Cloud Server, then the instruction Lamp is always on；No. 9 pins of the chip U4 are connected to the end VCC after being sequentially connected in series resistance R2 and another LED light, work as chip U4, then should the indicator light is always on just in data transmission.

Referring to Fig. 8-10, the access controller further includes rectifier circuit and DC modular circuit, for will be through patching The alternating current that part J7 is obtained becomes direct current, and load is supplied after filtering, and the load includes WIFI module and single-chip microcontroller U2, the end VCC of the connector J7 are connected to two ports VOUT+ of DM02, and the end GND of connector is connected to the two of DM02 A port VOUT-, the cathode of parallel diode D6 and the cathode of diode D9, diode after two ports VIN+ of DM02 are connected The anode of D6 is connected to the cathode of diode D11, and the anode of diode D9 is connected to the cathode of diode D10, diode D10's Anode connects two ports VIN- of DM02 after being connected with the anode of diode D11.No. 1 pin of connector J3 is connected to two poles Between pipe D9 and diode D10, No. 2 pins of connector J3 are connected between diode D6 and diode D11.Described patches The end VCC of part J7 is also connected in parallel to the anode of polarized capacitor C5, the one end capacitor C1, polarized capacitor C11 anode and connector J4 No. 1 pin, the other end of the cathode of polarized capacitor C5, capacitor C1, the 2 of the cathode of polarized capacitor C11 and connector J4 Number pin is connected.

The access controller includes the first simulator for simulating enabling key and second for simulating off-hook key Simulator is opened for passing through the first simulator control electric control lock after receiving opening signal, and is plucked receiving Off hook state is entered by the second simulator control building speakerphone after machine signal, for simulating door opening action relay Circuit referring to Figure 11, both 2. principle and connection structure are equal referring to Figure 1 for the relay circuit for simulating off-hook movement It is identical.

Referring to Figure 16, for simulating in door opening action relay circuit, No. 1 pin of connector J1 is connected to relay K1 No. 1 pin, No. 2 pins of connector J1 are connected to No. 3 pins and No. 4 pins of relay K1, No. 3 pins of connector J1 It is connected to No. 6 pins of relay K1, No. 5 pins of relay K1 are connected to the cathode of the one end resistance R5 and diode D4, and two The plus earth of pole pipe D4, the other end of resistance R7 are connected to the collector of the one end resistance R1 and triode Q1, and resistance R1 is another The anode of end connection light emitting diode D2, the cathode ground connection of light emitting diode D2, the emitter of triode Q1 are connected to the end VCC, The base stage of triode Q1 is connected to one end of resistance R11, and the other end of resistance R11 is connected to No. 14 pins of single-chip microcontroller U2, connects Plug-in unit J1 is connected at the door opening key of existing building speakerphone.Such as No. 1 pin of two interfaces and No. 3 pins of connector J1 It is parallel to two lateral circuit of unlock in Figure 15 respectively.

Referring to Figure 17, in the relay circuit for simulating off-hook movement, No. 1 pin of connector J2 is connected to relay No. 1 pin of K2, No. 2 pins of connector J2 are connected to No. 3 pins and No. 4 pins of relay K2, No. 3 pipes of connector J2 Foot is connected to No. 6 pins of relay K2, and No. 5 pins of relay K2 are connected to the cathode of the one end resistance R10 and diode D5, The plus earth of diode D5, the other end of resistance R10 are connected to the collector of the one end resistance R4 and triode Q2, and resistance R4 is another One end connects the anode of light emitting diode D3, the cathode ground connection of light emitting diode D3, and the emitter of triode Q2 is connected to VCC End, the base stage of triode Q2 are connected to one end of resistance R13, and the other end of resistance R13 is connected to No. 13 pins of single-chip microcontroller U2, Connector J2 is connected at the talk button of existing building speakerphone.Such as connector J2 No. 1 pin and No. 3 pins be parallel to Two circuit connection points in Figure 15 on the left of hook.

In relay circuit for simulating door opening action relay circuit and for simulating off-hook movement, No. 5 pins are Coil control terminal, usually relay switch is connected to No. 1 pin, is controlled by single-chip microcontroller U2 from No. 5 pin input control signals, Relay switch can be made to be connected to 6, to realize that the function of off-hook is opened the door or simulated in simulation.

Referring to Figure 13, the single-chip microcontroller U2 is additionally provided with power indicator circuit, the end the VCC connection luminous two of single-chip microcontroller U2 The anode of pole pipe D8, the cathode of light emitting diode D8 are connected to one end of resistance R9, and the other end of resistance R9 is connected to single-chip microcontroller No. 17 pins of U2, when single-chip microcontroller U2 is normally connected with power supply, the light emitting diode D8 of power indicator circuit is always on, with aobvious Show the normal condition of single-chip microcontroller U2.

Referring to Figure 14, the single-chip microcontroller U2 is additionally provided with reserved key circuit, under special requirement to single-chip microcontroller U2 into Row opens and closes.The end VCC of single-chip microcontroller U2 is connected to one end of resistance R14, and the other end of resistance R14 is connected to key S1's One end, one end of capacitor C2 and No. 16 pins of single-chip microcontroller U2, the other end of capacitor C2 is connected with the other end of key S1 to be followed by Ground.

In use, user logs in Cloud Server by mobile phone or computer, and is transmitted to Cloud Server and open the door or open call Off hook signal, Cloud Server and access controller realize that long-range signal is connected and incited somebody to action by WIFI module and wireless router Opening signal or off hook signal are transmitted to access controller.The single-chip microcontroller U2 of access controller then leads to when receiving opening signal No. 14 pins of single-chip microcontroller U2 are crossed to input control signal at No. 5 pins for simulating door opening action relay circuit, make after Electric appliance K1 switchs No. 6 pins for being connected to relay K1, to realize the output of opening signal, opens electric control lock.Access control The single-chip microcontroller U2 of device is when receiving off hook signal, then by No. 13 pins of single-chip microcontroller U2 to for simulating off-hook actuating relay Input control signal at No. 5 pins of circuit makes relay K2 switch be connected to No. 6 pins of relay K2, plucks to realize The output of machine signal, starts the call of building message register, and call-information realizes transmission by WIFI module and Cloud Server.

By the setting of present embodiment, upgrading directly is transformed to existing unit access control system and is able to achieve gate inhibition Long-range control the mobile authorization information reform of low investment is realized to vast storage unit lock market；To people Su Yunying Management, in conjunction with intelligent door lock, provides unattended management passage of entering the room；To personal user, realize register one's residence without key, no card Piece mobile authorization management；It is suitble to personalized adjustment, does not influence public resource, propelling resistance is small；It is bright to stock market upgrading effect It is aobvious, upgrading thinking is provided to novel product.

Claims (7)

1. a kind of intelligent access control system, including access controller, by the electric control lock and building talkback of access controller control opening and closing Machine, it is characterised in that the intelligent access control system further includes the connected Cloud Server of signal and users' mobile end, the cloud Server is connected with access controller signal, and the users' mobile end is used to send opening signal to Cloud Server, described The opening signal or off hook signal that Cloud Server is used to issue to access controller transmission users' mobile end, the access control Device includes the first simulator for simulating enabling key, for passing through described in the control of the first simulator after receiving opening signal Electric control lock open.

2. intelligent access control system as described in claim 1, it is characterised in that first simulator includes opening for simulating Door actuating relay circuit, No. 1 pin of connector J1 are connected to No. 1 pin of relay K1, and No. 2 pins of connector J1 connect No. 3 pins and No. 4 pins of relay K1 are connected to, No. 3 pins of connector J1 are connected to No. 6 pins of relay K1, relay No. 5 pins of device K1 are connected to the cathode of the one end resistance R5 and diode D4, and the plus earth of diode D4, resistance R7's is another End is connected to the collector of the one end resistance R1 and triode Q1, and the resistance R1 other end connects the anode of light emitting diode D2, shines The cathode of diode D2 is grounded, and the emitter of triode Q1 is connected to the end VCC, and the base stage of triode Q1 is connected to resistance R11's One end, the other end of resistance R11 are connected to the control chip of access controller, and connector J1 is connected to existing building speakerphone At door opening key.

3. intelligent access control system as described in claim 1, it is characterised in that the users' mobile end is also used to cloud service Device sends off hook signal, and the access controller further includes the second simulator for simulating off-hook key, and is plucked receiving Off hook state is entered by the second simulator control building speakerphone after machine signal.

4. intelligent access control system as claimed in claim 3, it is characterised in that second simulator includes that simulation off-hook is dynamic The relay circuit of work, No. 1 pin of connector J2 are connected to No. 1 pin of relay K2, No. 2 pins connection of connector J2 To No. 3 pins and No. 4 pins of relay K2, No. 3 pins of connector J2 are connected to No. 6 pins of relay K2, relay No. 5 pins of K2 are connected to the cathode of the one end resistance R10 and diode D5, and the plus earth of diode D5, resistance R10's is another End is connected to the collector of the one end resistance R4 and triode Q2, and the resistance R4 other end connects the anode of light emitting diode D3, shines The cathode of diode D3 is grounded, and the emitter of triode Q2 is connected to the end VCC, and the base stage of triode Q2 is connected to resistance R13's One end, the other end of resistance R13 are connected to the control chip of access controller, and connector J2 is connected to existing building speakerphone At talk button.

5. intelligent access control system as claimed in claim 1 or 3, it is characterised in that the access controller is real by single-chip microcontroller U2 It now controls, single-chip microcontroller U2, which is connected with WIFI module U4 signal and passes through WIFI module U4, to be realized and the transmission of the information of Cloud Server.

6. intelligent access control system as claimed in claim 5, it is characterised in that the model of the single-chip microcontroller U2 STM8S003F3, single-chip microcontroller U2 are single-chip microcontroller U2 after connector J7 connection external power supply using connector J7 as external power supply port The voltage of 3.3V is provided, No. 1 pin of connector J7 is as the end VCC, and No. 9 pins of single-chip microcontroller U2 are as the end VCC, connector J7 The end VCC be connected with the end VCC of single-chip microcontroller U2 after be parallel with resistance R12 and capacitor C4, be connected to single-chip microcontroller U2's after resistance R12 No. 2 pins of No. 18 pins and connector J7, capacitor C4 rear side ground connection, No. 3 pins ground connection of connector, No. 4 pipes of connector The rear side ground connection of series capacitance C3, capacitor C3 after foot is connected with No. 4 pins of single-chip microcontroller U2, No. 8 pins series connection of single-chip microcontroller U2 It is grounded after capacitor C10.

7. intelligent access control system as claimed in claim 6, it is characterised in that the single-chip microcontroller U2 of the access controller passes through WIFI module realizes that the signal between Cloud Server connects, the model USR-C215 for the chip U4 that WIFI module uses, core No. 6 pins of piece U4 and No. 2 pins of single-chip microcontroller U2, No. 3 pins of No. 5 pins connection single-chip microcontroller U2 of chip U4, thus real Data between existing WIFI module and single-chip microcontroller U2 are transmitted, and it is defeated that the connector J7 also provides power supply simultaneously for WIFI module Enter, and be additionally provided with WIFI power supply adapter circuit between connector J7 and WIFI module, No. 2 pins of chip U4 are as VCC End is parallel with resistance R8, capacitor C8 and resistance R5, is connected to the one end capacitor C7 and No. 4 pins of chip U4 on rear side of resistance R8, electricity The one end capacitor C6 and No. 3 pins of chip U4 are connected on rear side of resistance R5, the capacitor C7 other end, the capacitor C8 other end and capacitor C6 The other end is grounded.