CN103884362A

CN103884362A - Wireless proximity switch sensor

Info

Publication number: CN103884362A
Application number: CN201410078236.7A
Authority: CN
Inventors: 甘伟; 刘岭
Original assignee: Hebei Iron And Steel Co Ltd Handan Branch
Current assignee: Hebei Iron And Steel Co Ltd Handan Branch
Priority date: 2014-03-05
Filing date: 2014-03-05
Publication date: 2014-06-25

Abstract

The invention belongs to the technical field of electrical wireless detecting devices, and discloses a wireless proximity switch sensor in order to overcome the defects that in wired connection, damage is prone to occurring and replacement is complex. According to the technical scheme, the wireless proximity switch sensor comprises a reed switch, a touch switch, a wireless processor module, a liquid crystal display module and a power source circuit. The reed switch and the touch switch are connected with an input IO of the wireless processor module, the liquid crystal display module is connected with an output IO of the wireless processor module, and the power source circuit is connected with the reed switch, the touch switch, the wireless processor module and the liquid crystal display module respectively. The wireless proximity switch sensor utilizes the ZigBee technology which has been successfully used in the field of industrial production, and the transmission frequency of wireless data is 2.4 GHz. Due to the fact that the low power consumption wireless processor and the low power consumption reed switch are adopted, the wireless proximity switch sensor has the advantages of being low in power consumption, wireless in data transmission, high in reliability, convenient to replace and the like.

Description

A kind of wireless approach switch sensor

Technical field

The present invention relates to a kind of wireless approach switch sensor, belong to electric radio detection equipment technical field.

Background technology

Along with the develop rapidly of maturation and the chip industry of wireless technology, wireless sensor technology starts, in industrial circle application, to have good development prospect.For the approach switch of industrial automation control system, be the novel switched element that a kind of oncontacting is revealed at present, have detection, control the also function of output electrical signals, its kind is many, is widely used.But these approach switchs all adopt wired connection mode, power and signal transmission by electric wire, exist connection line long, connection line easily damages, and changes the problems such as complicated.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of wireless approach switch sensor, and this sensor adopts wireless connections mode, can avoid the circuit of wired connection easily to damage, change the defects such as complicated.

The technical scheme solving the problems of the technologies described above is:

A kind of wireless approach switch sensor, comprise tongue tube, touch-switch, wireless processor module, LCD MODULE and power circuit, tongue tube, touch-switch are connected with the input IO of wireless processor module, LCD MODULE is connected with the output IO of wireless processor module, and power circuit is connected with tongue tube, touch-switch, wireless processor module, LCD MODULE respectively.

Above-mentioned wireless approach switch sensor, the peripheral circuit of described wireless processor module comprises the analog power circuit and the digital power circuit that are made up of multiple electric capacity, wireless processor module also connects crystal oscillator and antenna circuit.

Above-mentioned wireless approach switch sensor, described power circuit adopts three terminal regulator, the input termination 5V power supply of three terminal regulator, output terminal is 3.3V, output terminal connects tongue tube, touch-switch, wireless processor module, LCD MODULE.

The invention has the beneficial effects as follows:

The present invention is a kind of novel wireless approach switch sensor, this sensor utilization has been successfully applied to the ZigBee technology of field of industrial production, Wireless Data Transmission frequency is 2.4GHz, owing to adopting low-consumption wireless processor and low-power consumption tongue tube, the feature such as there is low-power consumption, Wireless Data Transmission, reliability is high, replacing is convenient.

Accompanying drawing explanation

Fig. 1 is block diagram of the present invention;

Fig. 2 is wireless processor module circuit diagram;

Fig. 3 is the circuit diagram of tongue tube, touch-switch, LCD MODULE and power circuit.

In figure, mark is as follows: tongue tube 1, wireless processor module 2, LCD MODULE 3, touch-switch 4, power circuit 5.

Embodiment

The present invention includes tongue tube 1, touch-switch 4, wireless processor module 2, LCD MODULE 3 and power circuit 5.

In figure, show, tongue tube 1, touch-switch 4 are connected with the input IO of wireless processor module 2, LCD MODULE 3 is connected with the output IO of wireless processor module 2, and power circuit 5 is connected with tongue tube 1, touch-switch 4, wireless processor module 2, LCD MODULE 3 respectively.

In above-mentioned parts, tongue tube 1, for detection of object space, is the main detecting element of this wireless approach switch sensor.Wireless processor module 2 completes to be analyzed, judges the data message of collection, and carries out data transmission by wireless mode, has environment temperature and detects and report to the police, and battery electric quantity detects and warning function.LCD MODULE 3 shows for the state that carries out wireless approach switch sensor.Touch-switch 4 resets for wireless approach switch sensor.Power circuit 5 is whole sensor power supply.

In figure, show, the parts that one embodiment of the present of invention adopt are as follows:

Tongue tube 1 is selected and is often opened plastic package type GPS-14A tongue tube, its influence time is 1.3ms, tongue tube 1 is the adhesive of magnetic contact in the time running into extraneous magnetic force, in the time that magnetic force is reduced to a certain degree, contact is opened by the elastic force of reed, its cost is low, speed fast, stable performance, and when work, power consumption is almost nil, and its signal is sent to the input IO of wireless processor module.

Wireless processor module 2 adopts the CC2530 chip of TI company, it is the second generation SOC (system on a chip) solution for realizing 2.4GHz IEEE 802.15.4/ZigBee, in CC2530, designed environment temperature and detected and report to the police, battery electric quantity detects and warning function.

LCD MODULE 3 adopts the LCD MODULE OCMJ4X8C of the 128x64 series with Serial Communication Function.

Touch-switch 4 model SKHHAMA010, reset for sensor.

Power circuit 5 adopts AMS1117-3.3 voltage stabilizer, transfers 5V to 3.3V, is whole sensor power supply.

Fig. 2 demonstration, wireless processor module 2 is take CC2530 as master chip, and the selection of the peripheral circuit electric capacity of chip U1, resistance, crystal oscillator, designs by official of TI company chip periphery circuit design scheme, to meet good Wireless Data Transmission performance.Wireless processor module terminals P 1, the wireless processor module terminals P 2 of wireless processor module 2 adopt MHDR2X6 chip, and I/O signal is drawn from wireless processor module terminals P 1, wireless processor module terminals P 2, have good convertibility.1,2,3,4, No. 41 pin ground connection of chip; 5th, 6,7,8,9,11,12,13,14,15,16,17,18,19,34,35,36,37,38 pins are input and output I/O, wherein the 16th pin P0_3 connects LED1002 for the indication of tongue tube detection signal, the 18th pin P0_1 connects LED1001 for system operation indication, the 19th pin P0_0 connects tongue tube REED SW for detection of the position of object that magnetic material is housed, and the 20th pin Reset_N is used for connecting resetting and uses touch-switch S1001; 27th, 28,29,24,21,31 pins connect capacitor C 271, C272, C211, C311 provides analog power, corresponding capacitance other end ground connection for CC2530; 10th, 39,40 pins connect capacitor C 101, C391, C401 provides digital power, corresponding capacitance other end ground connection for CC2530; 32nd, 33 pins connection crystal oscillator X2 and capacitor C 321, C331, the 22nd, 23 pins connection crystal oscillator X1 and capacitor C 221, C231, corresponding capacitance other end ground connection; 25th, 26 pins connect antenna circuit, are connected with C251, C261, C262, L251, L252, L261, C252, C253, C254, C255 and antenna base P3; The 30th pin connects the outside precision offset resistance R 301 of reference current, the other end ground connection of corresponding resistor, and corresponding connection line is as shown in Figure 2.

Fig. 3 demonstration, wireless processor module terminals P 1, wireless processor module terminals P 2 from Fig. 2 radiating circuit are introduced I/O, for the signal input of tongue tube 1, touch-switch 4, control the signal output of LED, and to LCD MODULE output data.Resistance R 1001 one end connect LED1001, one end connects 3.3V power supply, and LED1001 is for system operation indication; Resistance R 1002 one end connect LED1002, one end connects 3.3V power supply, and LED1002 is for the indication of tongue tube detection signal; Resistance R 1003 one end connect to reset uses touch-switch S1001, one end to connect 3.3V power supply; Resistance R 1004 one end connect tongue tube S1003, one end connects 3.3V power supply; The 3rd pin of AMS1117-3.3 voltage regulator chip connects capacitor C 1001 and power switch S1002, the S1002 other end connects electric battery, the 1st pin ground connection, the 2nd pin connects capacitor C 1002 and exports 3.3V power supply is sensor power supply, the other end ground connection of capacitor C 1002.The 5th pin P1_5 of wireless processor module terminals P 1 connects the STD pin of LCD MODULE 3, for the data-signal input of serial communication; The 6th pin P1_6 of wireless processor module terminals P 1 is for the SCLK pin with LCD MODULE, for connecting the clock signal input of serial communication.

Claims

1. a wireless approach switch sensor, it is characterized in that: comprise tongue tube (1), touch-switch (4), wireless processor module (2), LCD MODULE (3) and power circuit (5), tongue tube (1), touch-switch (4) are connected with the input IO of wireless processor module (2), LCD MODULE (3) is connected with the output IO of wireless processor module (2), and power circuit (5) is connected with tongue tube (1), touch-switch (4), wireless processor module (2), LCD MODULE (3) respectively.

2. wireless approach switch sensor according to claim 1, it is characterized in that: the peripheral circuit of described wireless processor module (2) comprises the analog power circuit and the digital power circuit that are made up of multiple electric capacity, wireless processor module (2) also connects crystal oscillator and antenna circuit.

3. wireless approach switch sensor according to claim 1, it is characterized in that: described power circuit (5) adopts three terminal regulator, the input termination 5V power supply of three terminal regulator, output terminal is 3.3V, and output terminal connects tongue tube (1), touch-switch (4), wireless processor module (2), LCD MODULE (3).