CN204462724U - A kind of WIFI gateway of radio sensing network - Google Patents
A kind of WIFI gateway of radio sensing network Download PDFInfo
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- CN204462724U CN204462724U CN201520086695.XU CN201520086695U CN204462724U CN 204462724 U CN204462724 U CN 204462724U CN 201520086695 U CN201520086695 U CN 201520086695U CN 204462724 U CN204462724 U CN 204462724U
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Abstract
The utility model discloses a kind of WIFI gateway of radio sensing network.The utility model comprises CPU module, concentrator communication module, WIFI communication module, system power supply module and information indicating module.Power module is CPU module, concentrator communication module, WIFI communication module provide stable 3.3V Power supply.Information indicating module provides gateway status information.CPU module coordinates the communication between concentrator communication module and WIFI communication module, and its data serial ports being responsible for WIFI communication module to receive receives, and is sent to concentrator communication module by SPI; The information that same concentrator communication module collects is sent to central control module by SPI, then data are sent to WIFI communication module, thus imports internet into.The utility model has that efficiency is high, response in real time, reliability is high, the features such as antijamming capability is strong.
Description
Technical field
The utility model belongs to technology of Internet of things field, relate to a kind of to upper support 2.4GHz long distance wireless data transmit-receive, to the wireless device with gateway function of lower support 433MHz wireless low-power consumption data transmit-receive.
Background technology
Along with the rapid development of microelectronics system, compunication, integrated circuit and radio-frequency technique, radio sensing network obtains great promotion as a kind of emerging network technology, is widely used in the fields such as environmental monitoring, Smart Home and construction quality monitoring.
Wireless sensor network system is layer important component part perceptually, is to be made up of a large amount of sensor nodes with radio communication and computing power, can to complete the multi-hop of appointed task, the network system of self-organization.But due to the restriction of the condition such as sensing node own resource, deployed environment, network infrastructure in radio sensing network, it is unpractical for being directly linked into the server with service performance.In order to solve the problem, need to send perception data to service server by a long-distance transmissions net.WIFI gateway is as the equipment connecting wireless sensor network and extraneous control terminal, the data of wireless sensor network perception can be made effectively to be delivered to data center, by to the arrangement of data and analysis, the change user of high degree can obtain the mode of the data of natural world, the management simultaneously also can concentrated the node in wireless sensor network, solves the unmanageable problem of node in the wireless sensor network be dispersed at present everywhere.
Summary of the invention
The purpose of this utility model is exactly the function based on WIFI gateway, devises a kind of to upper support 2.4GHz long distance wireless data transmit-receive, to the wireless device with gateway function of lower support 433MHz wireless low-power consumption data transmit-receive.
The technical scheme that the utility model adopts is: whole WIFI gateway system is mainly divided into two parts: wireless personal area net system (collecting the data of internal sensor network node) and wireless wide-area net system (with service server communication).Be made up of following four parts: CPU module, concentrator communication module, WIFI communication module, system power supply module and information indicating module.
Described CPU module comprises main control chip U7, single-row socket U3, crystal oscillator Y2, Y3, interrupteur SW 1, tantalum electric capacity C4, C5, ceramic disc capacitor C6, C7, C8, C9, C10, C23, C25, C26, C27, C28, C36, resistance R1, R2, R3, R4, R18, R19, R20, R30.1 pin of single-row socket U3 is connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 6 pin respectively 90 pin of one end of same R4, R3, R2, R1 and main control chip U7,77 pin, 72 pin, 89 pin are connected, the other end of R4, R3, R2, R1 is connected with power supply 3.3V, its 5 pin, 7 pin are connected with 76 pin of main control chip U7,14 pin respectively, and 8 pin are connected together.1 pin of crystal oscillator Y2 is with 8 pin of U7, and one end of C23 is connected, and 2 pin are with 9 pin of U7, and one end of C25 is connected, and the other end of electric capacity C23, C25 is connected together.1 pin of crystal oscillator Y3 is with 12 pin of U7, and one end of C26 is connected, and 2 pin are with 13 pin of U7, and one end of C27 is connected, and the other end of electric capacity C26, C27 is connected together.1 pin of interrupteur SW 1 is with one end of resistance R30, and one end of electric capacity C36 is connected, and 2 pin are connected and ground connection with the other end of C36, another termination power 3.3V of resistance R30.One end of resistance R20, electric capacity C28 is connected with 14 pin of U7, and the other end of resistance R20 is connected with power supply 3.3V, and the other end of electric capacity C28 is connected together.Resistance R18 one end is connected with 37 pin of U7, and the other end is connected together.Resistance R19 one end is connected with 94 pin of U7, and the other end is connected together.Electric capacity C6, C7, C8, C9, C10 are connected with power supply 3.3V with the positive pole of tantalum electric capacity C4, C5, and its other end is connected together.10 pin of main control chip U7, 19 pin, 20 pin, 27 pin, 49 pin, 74 pin, 99 pin are connected together, 6 pin, 11 pin, 21 pin, 22 pin, 28 pin, 50 pin, 75 pin, 100 pin are connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 5 pin, 7 pin, 34 pin, 38 pin, 39 pin, 40 pin, 45 pin, 46 pin, 47 pin, 48 pin, 51 pin, 52 pin, 53 pin, 54 pin, 55 pin, 56 pin, 57 pin, 58 pin, 59 pin, 60 pin, 61 pin, 62 pin, 63 pin, 64 pin, 65 pin, 66 pin, 67 pin, 70 pin, 71 pin, 73 pin, 78 pin, 79 pin, 81 pin, 82 pin, 84 pin, 85 pin, 86 pin, 87 pin, 88 pin, 91 pin, 92 pin, 93 pin, 95 pin, 96 pin, 97 pin, 98 pin are unsettled.
Described concentrator communication module comprises wireless CC1101 radio-frequency module U8, tantalum electric capacity C29, ceramic disc capacitor C30.1 pin of U8 is with the positive pole of tantalum electric capacity C29, one end of ceramic disc capacitor C30 is connected and meets power supply 3.3V, 2 pin of U8 are with the negative pole of tantalum electric capacity C29, the other end of ceramic disc capacitor C30 is connected and ground connection, 3 pin of U8,4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin are connected with 29 pin of main control chip U7,32 pin, 30 pin, 31 pin, 35 pin, 36 pin, 33 pin respectively, and 10 pin of U18 are unsettled.
Described WIFI communication module comprises RT5350 wireless module U11, antenna stand U10, tantalum electric capacity C34, ceramic disc capacitor C33, C35, resistance R28 and interface P10.The 1 pin ground connection of wireless module U11,2 pin are connected with the positive pole of tantalum electric capacity C34, one end of ceramic disc capacitor C35 and access power supply 3.3V, the negative pole of tantalum electric capacity C34 is connected and ground connection with the other end of ceramic disc capacitor C35, its 7 pin is with 23 pin of main control chip U7, one end of ceramic disc capacitor C33, one end of resistance R28 is connected, the other end ground connection of ceramic disc capacitor C33, another termination power 3.3V of resistance R28, its 3 pin, 4 pin, 8 pin, 9 pin, 10 pin are connected with 26 pin of main control chip U7,25 pin, 24 pin, 17 pin, 18 pin respectively.1 pin of interface P10 is connected with 1 pin of antenna stand U10, and 2 pin of stand, 3 pin, 4 pin, 5 pin are connected together.
Described power module comprises DC-5 stand U1, step-down chip U5, switch S 1, diode D4, tantalum electric capacity C17, C18, ceramic disc capacitor C19, C20.1 pin of U1 is connected with power supply 5.5V.1 pin of switch S 1 is connected with the negative pole of diode D4, and 2 pin one end with ceramic disc capacitor C19, the positive pole of tantalum electric capacity C17,3 pin of step-down chip U5 are connected, and the positive pole of diode D4 meets power supply 5.5V.2 pin of step-down chip U5 are with one end of ceramic disc capacitor C20, and the positive pole of tantalum electric capacity C18 is connected and meets power supply 3.3V, 2 pin of stand U1,3 pin, 1 pin of step-down chip U5, the negative pole of tantalum electric capacity C17, C18, the other end ground connection of ceramic disc capacitor C19, C20,3 pin of switch S 1 are unsettled.
Described information indicating module comprises 4 LED LED1, LED2, LED3, LED4, hummer U9, NPN triode Q3, diode D6, ceramic disc capacitor C32, resistance R22, R23, R24, R25, R26, R27.The positive pole of LED LED1, LED2, LED3, LED4 is connected with 44 pin of main control chip U7,43 pin, 42 pin, 41 pin respectively, its negative pole is connected with one end of resistance R25, R24, R23, R22 respectively, and the other end of resistance R25, R24, R23, R22 is connected together.The collector of NPN triode Q3 is with the positive pole of diode D6, and 2 pin of hummer U9 are connected, and base stage is connected with one end of resistance R26, R27, and emitter is connected and ground connection with the other end of resistance R27.The other end of resistance R26 is connected with 16 pin of main control chip U7, and the negative pole of diode D6 is with one end of electric capacity C32, and 1 pin of hummer U9 is connected, and meets power supply 5V, the other end ground connection of electric capacity C32.
Main control chip U7 adopts the STM32F103V8T6 of ST company, and wireless module U11 adopts the integration module using the RT5350 chip of MTK company as main control chip, and step-down chip U5 adopts AMS1117-3.3V.
The beneficial effects of the utility model: adopt the gateway based on WIFI network, realize the protocol conversion on network layer, are applicable to extensive remote internet of things system.This device has that efficiency is high, response in real time, reliability is high, the features such as antijamming capability is strong, have good versatility simultaneously, interface flexible is convenient, is easy to control, and has good maintainability and extendability, good economy, easily manufactured, cost is low.
Accompanying drawing explanation
Fig. 1 is the wireless sensor system structural drawing that WIFI gateway connects remote server;
Fig. 2 is the wireless sensor system structural drawing of WIFI gateway own components server;
Fig. 3 is the hardware one-piece construction block diagram of WIFI gateway;
Fig. 4 is STM32 controller module circuit theory diagrams;
Fig. 5 is the block diagram of concentrator communication module;
Fig. 6 is WIFI communication module circuit theory diagrams;
Fig. 7 is system power supply modular circuit schematic diagram;
Fig. 8 is system information indicating circuit schematic diagram.
Embodiment
Specific embodiment of the utility model is described in detail according to technical scheme and accompanying drawing.
Here the wireless sensor system structural drawing of WIFI gateway is first introduced in detail.As depicted in figs. 1 and 2, gateway based on WIFI network realizes network interconnection more than network layer, being the most complicated network interconnection apparatus, network interconnection, for connecting the equipment of wireless sensor network and WIFI network, achieving the protocol conversion of WIFI network and wireless sensor network.
When after a series of functions such as the sensing node data acquisition in wireless sensor network and data fusion, the perception data of whole sensor network is concentrated to the aggregation node (i.e. Sink node) in gateway, aggregation node to be communicated the central processing unit transferred data in gateway by SPI, then data are integrated, analyze, again perception data is forwarded to WIFI network, if be now in can networking state for gateway, as Fig. 1, namely STA mode is adopted to be connected to router, then send data to long-range server, if be in self networking state, as Fig. 2, namely be ap mode, own components server, send to the terminal device being connected to this wireless network, otherwise, the data such as server (data center) or the instruction connecting this wireless wireless terminal device by reverse link loopback to the node in wireless sensor network.
Introduce the design of hardware circuit and the principle of work of modules of the modules of lower WIFI gateway below in detail.
Fig. 3 is the hardware one-piece construction block diagram of WIFI gateway.Whole WIFI gateway is primarily of following five part compositions: CPU module, concentrator communication module, WIFI communication module, system power supply module and information indicating module.System power supply module is CPU module, concentrator communication module, WIFI communication module provide stable 3.3V Power supply.Information indicating module provides gateway status information.CPU module coordinates the communication between concentrator communication module and WIFI communication module, and its data serial ports being responsible for WIFI communication module to receive receives, and is sent to concentrator communication module by SPI; The information that same concentrator communication module collects is sent to central control module by SPI, then data are sent to WIFI communication module, thus imports internet into.
Figure 4 shows that STM32 controller module circuit theory diagrams, STM32 controller module, as the CPU module of WIFI gateway, is connected to concentrator communication module and WIFI communication module, determines the performance of gateway.It mainly comprises main control chip U7, single-row socket U3, crystal oscillator Y2, Y3, interrupteur SW 1, tantalum electric capacity C4, C5, ceramic disc capacitor C6, C7, C8, C9, C10, C23, C25, C26, C27, C28, C36, resistance R1, R2, R3, R4, R18, R19, R20, R30.1 pin of single-row socket U3 is connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 6 pin respectively 90 pin of one end of same R4, R3, R2, R1 and main control chip U7,77 pin, 72 pin, 89 pin are connected, the other end of R4, R3, R2, R1 is connected with power supply 3.3V, its 5 pin, 7 pin are connected with 76 pin of main control chip U7,14 pin respectively, and 8 pin are connected together.1 pin of crystal oscillator Y2 is with 8 pin of U7, and one end of C23 is connected, and 2 pin are with 9 pin of U7, and one end of C25 is connected, and the other end of electric capacity C23, C25 is connected together.1 pin of crystal oscillator Y3 is with 12 pin of U7, and one end of C26 is connected, and 2 pin are with 13 pin of U7, and one end of C27 is connected, and the other end of electric capacity C26, C27 is connected together.1 pin of interrupteur SW 1 is with one end of resistance R30, and one end of electric capacity C36 is connected, and 2 pin are connected and ground connection with the other end of C36, another termination power 3.3V of resistance R30.One end of resistance R20, electric capacity C28 is connected with 14 pin of U7, and the other end of resistance R20 is connected with power supply 3.3V, and the other end of electric capacity C28 is connected together.Resistance R18 one end is connected with 37 pin of U7, and the other end is connected together.Resistance R19 one end is connected with 94 pin of U7, and the other end is connected together.Electric capacity C6, C7, C8, C9, C10 are connected with power supply 3.3V with the positive pole of tantalum electric capacity C4, C5, and its other end is connected together.10 pin of main control chip U7, 19 pin, 20 pin, 27 pin, 49 pin, 74 pin, 99 pin are connected together, 6 pin, 11 pin, 21 pin, 22 pin, 28 pin, 50 pin, 75 pin, 100 pin are connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 5 pin, 7 pin, 34 pin, 38 pin, 39 pin, 40 pin, 45 pin, 46 pin, 47 pin, 48 pin, 51 pin, 52 pin, 53 pin, 54 pin, 55 pin, 56 pin, 57 pin, 58 pin, 59 pin, 60 pin, 61 pin, 62 pin, 63 pin, 64 pin, 65 pin, 66 pin, 67 pin, 70 pin, 71 pin, 73 pin, 78 pin, 79 pin, 81 pin, 82 pin, 84 pin, 85 pin, 86 pin, 87 pin, 88 pin, 91 pin, 92 pin, 93 pin, 95 pin, 96 pin, 97 pin, 98 pin are unsettled.Main control chip U7 is realized with the communication between concentrator module by 29 pin, 32 pin, 30 pin, 31 pin, 35 pin, 36 pin, 33 pin, is realized with the communication between WIFI module by 17 pin, 18 pin, 23 pin, 24 pin, 25 pin, 26 pin.The resistance of resistance R1, R2, R3, R4, R18, R19, R20, R30 is 10 k Ω.The value of electric capacity C28, C26, C7, C8, C9, C10 is 1uF, and the value of electric capacity C36 is 0.1uF, and tantalum electric capacity C4, C5 value is 10uF, electric capacity C23, C25 are 6pF, and the value of crystal oscillator Y2 is 32.768KHz.Electric capacity C26, C27 are 10pF, and the value of crystal oscillator Y3 is 8MHz.
Fig. 5 is the hardware block diagram of concentrator communication module, and concentrator communication module of the present utility model is the key position of wireless sensor network, is the major part realizing controlled in wireless and transmission.Concentrator communication module is used for effectively managing the wireless sensor network under it, and the sensing node of main collecting sensor network collects data, or sends the node that number order controls sensor network.Concentrator communication module mainly comprises wireless CC1101 radio-frequency module U8, tantalum electric capacity C29, ceramic disc capacitor C30.1 pin of U8 is with the positive pole of tantalum electric capacity C29, one end of ceramic disc capacitor C30 is connected and meets power supply 3.3V, 2 pin of U8 are with the negative pole of tantalum electric capacity C29, the other end of ceramic disc capacitor C30 is connected and ground connection, 3 pin of U8,4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin are connected with 29 pin of main control chip U7,32 pin, 30 pin, 31 pin, 35 pin, 36 pin, 33 pin respectively, and 10 pin of U18 are unsettled.Tantalum electric capacity C29 value is 10uF, and ceramic disc capacitor C30 value is 100nF.
Fig. 6 is WIFI communication module circuit theory diagrams, is responsible for data to be sent to be sent to remote data center by mobile communications network.WIFI communication module mainly comprises use RT5350 module and radio-frequency antenna circuit.Main modular adopts the RT5350F chip of MTK company, RT5350 has very high reliability and cheap cost, and supports various modes state, can be good at satisfying the demands, realize self-defining customization, and it has very wide application in data transmission.This module mainly comprises RT5350 wireless module U11, antenna stand U10, tantalum electric capacity C34, ceramic disc capacitor C33, C35, resistance R28.The 1 pin ground connection of wireless module U11,2 pin are connected with the positive pole of tantalum electric capacity C34, one end of ceramic disc capacitor C35 and access power supply 3.3V, the negative pole of tantalum electric capacity C34 is connected and ground connection with the other end of ceramic disc capacitor C35, its 7 pin is with 23 pin of main control chip U7, one end of electric capacity C33, one end of resistance R28 is connected, the other end ground connection of electric capacity C33, another termination power 3.3V of resistance R28, its 3 pin, 4 pin, 8 pin, 9 pin, 10 pin are connected with 26 pin of main control chip U7,25 pin, 24 pin, 17 pin, 18 pin respectively.1 pin of interface P10 is connected with 1 pin of antenna stand U10, and 2 pin of stand, 3 pin, 4 pin, 5 pin are connected together.The resistance of resistance R28 is 10 k Ω, and the value of ceramic disc capacitor C33, C35 is 100nF, and tantalum electric capacity C34 value is 100uF.
Fig. 7 is mainly the power supply that other modules provide stable for system power supply module, and it comprises DC-5 stand U1, step-down chip U5, switch S 1, diode D4, tantalum electric capacity C17, C18, ceramic disc capacitor C19, C20.1 pin of U1 is connected with power supply 5.5V.1 pin of switch S 1 is connected with the negative pole of D4, and 2 pin one end with C19, the positive pole of tantalum electric capacity C17,3 pin of step-down chip U5 are connected, and the positive pole of diode D4 meets power supply 5.5V.2 pin of step-down chip U5 are with one end of C20, and the positive pole of tantalum electric capacity C18 is connected and meets power supply 3.3V, 2 pin of stand U1,3 pin, 1 pin of step-down chip U5, the negative pole of tantalum electric capacity C17, C18, the other end ground connection of ceramic disc capacitor C19, C20, and 3 pin of switch S 1 are unsettled.
Fig. 8 is system information indicating circuit, and 4 LED are by the different information of the combinational expression of different bright modes.Hummer U9 indicates as sound, and when module normally starts complete, hummer rings a sound, as prompting, carries out alarm sound prompting when makeing mistakes simultaneously.It mainly comprises 4 LED LED1, LED2, LED3, LED4, hummer U9, NPN triode Q3, diode D6, ceramic disc capacitor C32, resistance R22, R23, R24, R25, R26, R27.The positive pole of LED LED1, LED2, LED3, LED4 is connected with 44 pin of main control chip U7,43 pin, 42 pin, 41 pin respectively, and one end of its negative pole same R25, R24, R23, R22 is respectively connected, and the other end of R25, R24, R23, R22 is connected together.The collector of NPN triode Q3 is with the positive pole of diode D6, and 2 pin of hummer U9 are connected, and one end of base stage same R26, R27 is connected, and emitter is connected and ground connection with the other end of R27.The other end of resistance R26 is connected with 16 pin of main control chip U7, and the negative pole of diode D6 is with one end of electric capacity C32, and 1 pin of hummer U9 is connected, and meets power supply 5V, the other end ground connection of electric capacity C32.Resistance R22, R23, R24, R25, R27 value is 10 k Ω, and resistance R26 value is 1 k Ω, ceramic disc capacitor C32 value is 1uF.
So far, the design proposal of the WIFI gateway in a set of Internet of things system is achieved.The program adopts STM32 super low-power consumption microprocessor STM32F103VET6 and CC1101 chip to be core, the data-interface utilizing RT5350 to be network as the integration module of chip, solves the transmission problem of the data to data terminal in wireless sensor network preferably.
Claims (1)
1. a WIFI gateway for radio sensing network, comprises CPU module, concentrator communication module, WIFI communication module, system power supply module and information indicating module, it is characterized in that:
Described CPU module comprises main control chip U7, single-row socket U3, crystal oscillator Y2, Y3, interrupteur SW 1, tantalum electric capacity C4, C5, ceramic disc capacitor C6, C7, C8, C9, C10, C23, C25, C26, C27, C28, C36, resistance R1, R2, R3, R4, R18, R19, R20, R30, 1 pin of single-row socket U3 is connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 6 pin respectively 90 pin of one end of same R4, R3, R2, R1 and main control chip U7,77 pin, 72 pin, 89 pin are connected, the other end of R4, R3, R2, R1 is connected with power supply 3.3V, its 5 pin, 7 pin are connected with 76 pin of main control chip U7,14 pin respectively, and 8 pin are connected together, 1 pin of crystal oscillator Y2 is with 8 pin of U7, and one end of C23 is connected, and 2 pin are with 9 pin of U7, and one end of C25 is connected, and the other end of electric capacity C23, C25 is connected together, 1 pin of crystal oscillator Y3 is with 12 pin of U7, and one end of C26 is connected, and 2 pin are with 13 pin of U7, and one end of C27 is connected, and the other end of electric capacity C26, C27 is connected together, 1 pin of interrupteur SW 1 is with one end of resistance R30, and one end of electric capacity C36 is connected, and 2 pin are connected and ground connection with the other end of C36, another termination power 3.3V of resistance R30, one end of resistance R20, electric capacity C28 is connected with 14 pin of U7, and the other end of resistance R20 is connected with power supply 3.3V, and the other end of electric capacity C28 is connected together, resistance R18 one end is connected with 37 pin of U7, and the other end is connected together, resistance R19 one end is connected with 94 pin of U7, and the other end is connected together, electric capacity C6, C7, C8, C9, C10 are connected with power supply 3.3V with the positive pole of tantalum electric capacity C4, C5, and its other end is connected together, 10 pin of main control chip U7, 19 pin, 20 pin, 27 pin, 49 pin, 74 pin, 99 pin are connected together, 6 pin, 11 pin, 21 pin, 22 pin, 28 pin, 50 pin, 75 pin, 100 pin are connected with power supply 3.3V, 2 pin, 3 pin, 4 pin, 5 pin, 7 pin, 34 pin, 38 pin, 39 pin, 40 pin, 45 pin, 46 pin, 47 pin, 48 pin, 51 pin, 52 pin, 53 pin, 54 pin, 55 pin, 56 pin, 57 pin, 58 pin, 59 pin, 60 pin, 61 pin, 62 pin, 63 pin, 64 pin, 65 pin, 66 pin, 67 pin, 70 pin, 71 pin, 73 pin, 78 pin, 79 pin, 81 pin, 82 pin, 84 pin, 85 pin, 86 pin, 87 pin, 88 pin, 91 pin, 92 pin, 93 pin, 95 pin, 96 pin, 97 pin, 98 pin are unsettled,
Described concentrator communication module comprises wireless CC1101 radio-frequency module U8, tantalum electric capacity C29, ceramic disc capacitor C30; 1 pin of radio-frequency module U8 is with the positive pole of tantalum electric capacity C29, one end of ceramic disc capacitor C30 is connected and meets power supply 3.3V, 2 pin of radio-frequency module U8 are with the negative pole of tantalum electric capacity C29, the other end of ceramic disc capacitor C30 is connected and ground connection, 3 pin of radio-frequency module U8,4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 9 pin are connected with 29 pin of main control chip U7,32 pin, 30 pin, 31 pin, 35 pin, 36 pin, 33 pin respectively, and 10 pin of radio-frequency module U18 are unsettled;
Described WIFI communication module comprises RT5350 wireless module U11, antenna stand U10, tantalum electric capacity C34, ceramic disc capacitor C33, C35, resistance R28 and interface P10; The 1 pin ground connection of wireless module U11,2 pin are connected with the positive pole of tantalum electric capacity C34, one end of ceramic disc capacitor C35 and access power supply 3.3V, the negative pole of tantalum electric capacity C34 is connected and ground connection with the other end of ceramic disc capacitor C35, its 7 pin is with 23 pin of main control chip U7, one end of ceramic disc capacitor C33, one end of resistance R28 is connected, the other end ground connection of ceramic disc capacitor C33, another termination power 3.3V of resistance R28, its 3 pin, 4 pin, 8 pin, 9 pin, 10 pin are connected with 26 pin of main control chip U7,25 pin, 24 pin, 17 pin, 18 pin respectively; 1 pin of interface P10 is connected with 1 pin of antenna stand U10, and 2 pin of stand, 3 pin, 4 pin, 5 pin are connected together;
Described power module comprises DC-5 stand U1, step-down chip U5, switch S 1, diode D4, tantalum electric capacity C17, C18, ceramic disc capacitor C19, C20; 1 pin of U1 is connected with power supply 5.5V; 1 pin of switch S 1 is connected with the negative pole of diode D4,2 pin one end with ceramic disc capacitor C19, the positive pole of tantalum electric capacity C17, and 3 pin of step-down chip U5 are connected, and the positive pole of diode D4 meets power supply 5.5V; 2 pin of step-down chip U5 are with one end of ceramic disc capacitor C20, and the positive pole of tantalum electric capacity C18 is connected and meets power supply 3.3V, 2 pin of stand U1,3 pin, 1 pin of step-down chip U5, the negative pole of tantalum electric capacity C17, C18, the other end ground connection of ceramic disc capacitor C19, C20,3 pin of switch S 1 are unsettled;
Described information indicating module comprises 4 LED LED1, LED2, LED3, LED4, hummer U9, NPN triode Q3, diode D6, ceramic disc capacitor C32, resistance R22, R23, R24, R25, R26, R27; The positive pole of LED LED1, LED2, LED3, LED4 is connected with 44 pin of main control chip U7,43 pin, 42 pin, 41 pin respectively, its negative pole is connected with one end of resistance R25, R24, R23, R22 respectively, and the other end of resistance R25, R24, R23, R22 is connected together; The collector of NPN triode Q3 is with the positive pole of diode D6, and 2 pin of hummer U9 are connected, and base stage is connected with one end of resistance R26, R27, and emitter is connected and ground connection with the other end of resistance R27; The other end of resistance R26 is connected with 16 pin of main control chip U7, and the negative pole of diode D6 is with one end of electric capacity C32, and 1 pin of hummer U9 is connected, and meets power supply 5V, the other end ground connection of electric capacity C32;
Described main control chip U7 adopts the STM32F103V8T6 of ST company, and wireless module U11 adopts the integration module using the RT5350 chip of MTK company as main control chip, and step-down chip U5 adopts AMS1117-3.3V.
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| CN106873389A (en) * | 2017-02-16 | 2017-06-20 | 深圳市丰巨泰科电子有限公司 | Intelligent home control system hardware structure |
| CN111565384A (en) * | 2020-05-20 | 2020-08-21 | 江苏联宏智慧能源股份有限公司 | Intelligent home gateway capable of preventing network from being disconnected and implementation method |
| CN111669721A (en) * | 2019-03-06 | 2020-09-15 | 中国科学院微电子研究所 | Wireless wide-narrow band combined highway guardrail collision data acquisition and transmission method |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873389A (en) * | 2017-02-16 | 2017-06-20 | 深圳市丰巨泰科电子有限公司 | Intelligent home control system hardware structure |
| CN111669721A (en) * | 2019-03-06 | 2020-09-15 | 中国科学院微电子研究所 | Wireless wide-narrow band combined highway guardrail collision data acquisition and transmission method |
| CN111565384A (en) * | 2020-05-20 | 2020-08-21 | 江苏联宏智慧能源股份有限公司 | Intelligent home gateway capable of preventing network from being disconnected and implementation method |
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