CN203179260U - Zigbee-based wireless infrared sensor system - Google Patents

Zigbee-based wireless infrared sensor system Download PDF

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Publication number
CN203179260U
CN203179260U CN 201320139248 CN201320139248U CN203179260U CN 203179260 U CN203179260 U CN 203179260U CN 201320139248 CN201320139248 CN 201320139248 CN 201320139248 U CN201320139248 U CN 201320139248U CN 203179260 U CN203179260 U CN 203179260U
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CN
China
Prior art keywords
zigbee
data
infrared sensor
radio
gateway
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Expired - Fee Related
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CN 201320139248
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Chinese (zh)
Inventor
司昊杰
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SHANGHAI TD TELECOM TECHNOLOGY DEVELOPMENT Co Ltd
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SHANGHAI TD TELECOM TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The utility model discloses a zigbee-based wireless infrared sensor system which comprises a wireless infrared sensor node, a Zigbee gateway and a monitoring center host, wherein the wireless infrared sensor node acquires the field infrared data, preprocesses the acquired data and transmits the data to the ZigBee gateway through a ZigBee network; the ZigBee gateway converts the received data into data in an Ethernet protocol format and transmits the data to the monitoring center host through the Ethernet; and the monitoring center host monitors, calculates and displays the received data in real time. According to the system, zero-dead angle real-time monitoring in the machine rood can be realized through the zigbee technology, the alarm can be given out at the first time when the problem is discovered, and the safety of a machine room is effectively guaranteed.

Description

Radio infrared sensing system based on zigbee
Technical field
The utility model relates to a kind of wireless sensor technology, is specifically related to a kind of wireless sensor technology based on zigbee.
Background technology
Along with Internet fast development nowadays, rise various websites, because the consideration of cost and security problems, many websites company more is ready the server of own website is placed in the machine room of operator general designation IDC machine room.So this has proposed higher safety requirements for the rack of placing server and other equipment in operator's machine room.
At above-mentioned situation, people arrange camera and monitor in real time in operator's machine room, but camera exists many defectives and deficiency in the use of reality, and are specific as follows:
1, camera can't cover All Ranges, if having the people to swarm in the place of blind spot or destroy, bring severe impairment can for equipment and the personnel of machine room;
2, camera head monitor need manually be monitored in real time, and this not only can increase monitoring cost greatly, can not in time find for those tiny situations, and very low of the degree of accuracy of its monitoring can't be satisfied the requirement of operator's machine room high security at all;
3, camera head monitor is pinpointed the problems and can not be given the alarm timely, also needs manually to judge, gives the alarm again, and very low of its efficient will influence rescue personnel's rescue time greatly.
As from the foregoing, though nowadays in the machine room security that camera head monitor ensures machine room is housed all, can not bring truly safety to machine room, can not avoid machine room to suffer extraneous infringement fully.
The utility model content
The utility model in existing defective aspect the monitoring, and provides a kind of Radio infrared sensing system based on zigbee at existing machine room.This system can realize real-time monitoring to no dead angle in the machine room by the zigbee technology, and can give the alarm in the very first time of pinpointing the problems, and effectively guarantees the security of machine room.
In order to achieve the above object, the utility model adopts following technical scheme:
Based on the Radio infrared sensing system of zigbee, this system comprises:
The Radio infrared sensor node, the infrared data of described Radio infrared sensor node collection site, and the data that collect are carried out reaching the ZigBee gateway by the ZigBee network after the pre-service;
The ZigBee gateway, described ZigBee gateway becomes the data of Ethernet protocol form with the data-switching that receives, and reaches monitoring center's main frame by Ethernet;
Monitoring center's main frame, described monitoring center main frame carries out real-time monitoring calculating to the data of accepting and shows.
In preferred embodiment of the present utility model, the wireless data transmission range between described Radio infrared sensor node and the ZigBee gateway reaches 1000m.
Further, described Radio infrared sensor node comprises infrared sensor, ZigBee module and sensing antenna, and the output terminal of described infrared sensor connects the input end of ZigBee module, and the output terminal of described ZigBee module connects the sensing antenna.
Further again, described infrared sensor is the HC-SR501 human body induction module.
Further again, described ZigBee module is the CC2430 chip of integrated ZigBee radio-frequency front-end, internal memory and microcontroller.
Further, described ZigBee gateway comprises CC2430 chip, AT91SAM9260 microcontroller and the DM9161 ethernet controller chip of radio-frequency (RF) transceiver of the 2.4GHz of the inner integrated IEEE802.15.4 of meeting standard, and described CC2430 chip, AT91SAM9260 microcontroller and DM9161 ethernet controller chip data successively join and form the ZigBee gateway.
Further again, described ZigBee gateway also comprises Flash storer SST39VF160, and itself and AT91SAM9260 microcontroller join.
The utility model makes relevant detection data be sent to the background monitoring center to monitor data by being placed in infrared sensor in the machine room and the ZigBee gateway in the machine room by the telecommunication transmission net in use.The background monitoring center at any time in the monitoring room situation, can report to the police at once if there are personnel to break in, notify the maintainer.What thus, the utility model provided can be fully provides safety service reliably again to the client of operator based on the Radio infrared sensing system of zigbee.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is system chart of the present utility model;
Fig. 2 is the composition synoptic diagram of Radio infrared sensor node in the utility model;
Fig. 3 is the circuit theory diagrams of Radio infrared sensor node in the utility model;
Fig. 4 is the composition synoptic diagram of ZigBee gateway in the utility model;
Communication system synoptic diagram when Fig. 5 implements for the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, the Radio infrared sensing system based on zigbee that the utility model provides mainly is made up of Radio infrared sensor node 100, ZigBee gateway 200 and monitoring center's main frame 300 3 parts based on the ZigBee technology.Total system adopts star-like or tree network topological structure, and exists with a plurality of communication network forms.
Wherein, Radio infrared sensor node 100 is distributed in the place that needs monitoring, and concrete quantity is decided setting according to actual field.The infrared data at each 100 pairs of scene of Radio infrared sensor node carries out in real time or periodic the collection, and the data that collect are carried out the data that pre-service forms the ZigBee protocol format, at last that this pre-service is good data reach ZigBee gateway 200 by ZigBee network 400.
ZigBee gateway 200 has ZigBee telegon and protocol conversion function, and the data-switching of ZigBee protocol format is become the data of Ethernet protocol form, and is transferred in monitoring center's main frame 300 by Ethernet 500.
Monitoring center's main frame 300 shows the information of each infrared sensor node in real time by Ethernet 500 and ZigBee gateway 200 timely real-time Communication for Power.
Referring to Fig. 2, it is depicted as the composition synoptic diagram of Radio infrared sensor node 100.As seen from the figure, Radio infrared sensor node 100 is the Temperature Humidity Sensor node of an integrated ZigBee module, it mainly is made up of infrared sensor 101, ZigBee module 102 and sensor antenna 103, wherein the output terminal of infrared sensor connects the input end of ZigBee module, and the output terminal of described ZigBee module connects the sensing antenna.
On the basis of above-mentioned Radio infrared sensor node principle scheme, the utility model adopts particular circuit configurations shown in Figure 3 to realize Radio infrared sensor node 100.In this circuit, infrared sensor 101 adopts HC-SR501 human body induction module, ZigBee module 102 to adopt wireless SOC SOC (system on a chip) CC2430 chip, and ZigBee radio frequency (RF) front end, internal memory and microcontroller have been integrated at single chip, wherein the output port of HC-SR501 human body induction module is connected to chip CC2430 by resistance R 1 and capacitor C 1, utilize the interior ADC change-over circuit of chip CC2430 sheet with the site infrare data that collect, conversion forms the data of ZigBee protocol format, passes through ZigBee network destined rear end by day bundle of lines data then.
The HC-SR501 human body induction module that adopts in the utility model is the automatic control module based on infrared technology, it adopts the LHI778 probe designs, highly sensitive, good reliability, the extra low voltage mode of operation, the automatic control product that is widely used in all kinds of automatic induction apparatus equipment, especially dry cell power supplies.
This module has following characteristics:
1, full-automatic induction: the people enters its induction range and then exports high level, the people leave induction range then automatic time delay close high level, output low level.
2, photosensitive control (can select, not establish when dispatching from the factory) can arrange photosensitive control, does not respond to when daytime or light are strong.
3, temperature compensation (can select, not establish when dispatching from the factory): work as environment temperature in summer and be increased to 30~32 ℃, detection range shortens slightly, and temperature compensation can be made certain performance compensation.
4, two kinds of triggering modes: (but wire jumper selection):
A, not reproducible triggering mode: i.e. behind the induction output high level, delay time section one finishes, and output will become low level from high level automatically;
But b repeated trigger mode: i.e. behind the induction output high level, in the delay time section, if human body is arranged in its induction range activity, its output will keep high level always, after the people leaves, just delay time with high level become low level (induction module detects the delay time section that can postpone automatically after the activity each time of human body, and with the time of last activity be the starting point of delay time).
5, (default setting: the 2.5S blocking time): induction module is induction output back (high level becomes low level) each time, can be followed by a blocking time section be set, at this moment between a section interoceptor do not accept any induced signal.This function can realize " induction output time " and " blocking time " both interval work, can be applicable to survey at interval product; Simultaneously this function can effectively suppress the various interference that produce in the load handoff procedure.(this time can be arranged on second at several seconds zero point-tens).
6, operating voltage range is wide: acquiescence operating voltage DC4.5V-20V.
7, little power consumption: quiescent current<50 microampere are particularly suitable for the automatic control product of dry cell power supply.
8, output high level signal: can make things convenient for all kinds of circuit to achieve a butt joint.CC2430 chip in the utility model prolongs has used the framework of CC2430 chip in the past, has integrated Zigbee radio frequency (RF) front end, internal memory and microcontroller at single chip.It uses 18 MCU(8051), RAM with 128KB flash memory able to programme and 8KB, the park mode timer, electrify restoration circuit (Power On Reset), the power-fail detection circuit (Brown out detection) that also comprise analog-digital converter (ADC), several timer (Timer), AES128 coprocessor, WatchDog Timer (Watching timer), 32KHz crystal oscillator, and 21 programmable I/O pins.The CC2430 chip adopts the 0.18umCMOS explained hereafter; Under acceptance and emission mode, current loss is lower than 27mA or 25mA respectively.The park mode of CC2430 and the characteristic that is transformed into the ultrashort time of aggressive mode are particularly suitable for those and require the very long application of battery life.
CC2430 chip characteristics:
1,8051 microcontrollers of high-performance and low-power consumption nuclear;
2, the integrated RF wireless set that meets the 2.4GHz of IEEE802.15.4 standard;
3, good wireless receiving sensitivity and powerful anti-interference;
4, the stream of 0.9 μ A consumption only when park mode, outside interruption or RTC can waken systems; The stream consumption that when standby mode, is less than 0.6 μ A, outside interruption energy waken system;
5, hardware supported CSMA/CA function;
6, wideer voltage range (2.0~3.6V);
7, digitized RSSI/LQI supports and powerful DMA function;
8, have battery detection and temperature sensing function;
9, integrated 14 analog-to-digital ADC;
10, integrated AES security coprocessor;
11, the USART that has 2 powerful several groups of agreements of support, and 1 MAC timer that meets the IEEE802.15.4 standard, 16 bit timers of 1 routine and 28 bit timers;
12, powerful and developing instrument flexibly.
Since the system that provides of the utility model be not with one independently the communication network form exist, the infrared induction data of monitoring in the network need send to monitoring center's main frame and analyze and show, this just needs to realize the interconnected of ZigBee wireless monitor network and Ethernet.ZigBee radio network gateway 200 is realized this function, the protocol conversion of taking on ZigBee network and Ethernet.
Referring to Fig. 4, the ZigBee radio network gateway 200 in the utility model is made up of following part: the CC2430 wireless singlechip 201 of radio frequency (RF) transceiver of the 2.4GHz of the inner integrated IEEE802.15.4 of meeting standard, the AT91SAM9260 microcontroller 202, the DM9161 ethernet controller chip 203 that adopt ARM to examine.
CC2430 wireless singlechip 201 is accepted the data of the ZigBee protocol format that Radio infrared sensor node 100 sends by antenna 204, and to converting thereof into digital signal after this data pre-service, and transfer to AT91SAM9260 microcontroller 202; AT91SAM9260 microcontroller 202 reaches DM9161 ethernet controller chip 203 with the data that receive, and DM9161 ethernet controller chip 203 is sent to monitoring center's main frame with the data Ethernet protocol form that receives by Ethernet and analyzes and show.
Because the AT91SAM9260 microcontroller is not embedded in the Flash storer, so the utility model can externally be expanded a Flash storer SST39VF160(205),
The AT91SAM9260 microcontroller 202 that adopts in the utility model is based on the ARM926EJ-S processor, possesses 8KB instruction and 8KB data buffer memory.Run time behaviour can reach 210MIPS under the 190MHz clock frequency.This processor has comprised 8KB SRAM and 32KB ROM, can realize the monocycle visit under highest point reason device or bus speed.This processor also possesses external bus interface, has comprised all multi-controllers in these external bus interfaces, the static memory that is used for control SDRAM and comprises NAND Flash and CompactFlash.Its widely the peripherals collection comprise USB at full speed main frame and equipment interface, 10/100Base T ethernet mac, image sensor interface, multimedia card interface (MCI), synchronous serial controller (SSC), USART, master/slave Serial Peripheral Interface (SPI), triple channel 16 bit timing counter (TC), a two-wire interface (TWI) and 10 analog to digital converters of four-way.Three 32 bit parallel i/o controllers can be realized multiplexed with these peripherals by stitch, thereby reduced stitch quantity and the peripherals DMA passage of equipment, the data throughout on interface and the sheet, between the chip external memory has been risen to highest level.
For DM9161 ethernet controller chip 203, it is a fully-integrated and meet cost benefit single-chip Fast Ethernet PHY, is the adaptive ethernet transceiver of 10/100M that adopts less technology 0.25um.DM9161AEP is connected to the MAC layer by MII or the RMII standard digital interface of variable voltage, supports HP It is present common a physical layer transceiver, because the MCU integrated level in the whole world improves constantly, till now the PHY of deriving by previous MAC+PHY+MII at the cost of ethernet segment, reduces gradually.
The DM9161 ethernet controller chip has following characteristics:
1.48pin LQFP encapsulation;
2. manufacture craft: 0.25um, IO supply voltage 3.3V, simulation part 2.5V;
3. support MII and RMII connected mode (recommending to use MII);
4. support twisted-pair feeder self-adaptation (AUTO-mix);
5. support that TCP/IP accelerates firmly;
6. compatible fully with the MCU of the whole world 95% producer, be that ATMEL recommends the single port PHY that uses.
The utility model that forms based on such scheme is in real time concrete, the infrared sensor node is arranged in the monitored machine room, node sends to the ZigBee gateway by sensor antenna with the data that monitor, gateway is sent to monitoring center main frame (as shown in Figure 5) with data by telecommunication transmission net (being Ethernet) by the RJ45 interface on it, monitoring center's main frame is by analysis and demonstration to data, realize the interior situation of monitoring room at any time, will report to the police at once if there are personnel to break in, notify the maintainer.
The wireless communication distance that has 1000m between the infrared sensor node that forms by last scheme and the ZigBee gateway, so the utility model is when implementing, can form an individual networks in the machine room in the about 1000m scope of radius, gateway of each network equipment gets final product.
Thus, safety service reliably again is provided for fully the client of operator based on ZigBee Radio infrared sensing system.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (7)

1. based on the Radio infrared sensing system of zigbee, it is characterized in that described system comprises:
The Radio infrared sensor node, the infrared data of described Radio infrared sensor node collection site, and the data that collect are carried out reaching the ZigBee gateway by the ZigBee network after the pre-service;
The ZigBee gateway, described ZigBee gateway becomes the data of Ethernet protocol form with the data-switching that receives, and reaches monitoring center's main frame by Ethernet;
Monitoring center's main frame, described monitoring center main frame carries out real-time monitoring calculating to the data of accepting and shows.
2. the Radio infrared sensing system based on zigbee according to claim 1 is characterized in that, the wireless data transmission range between described Radio infrared sensor node and the ZigBee gateway reaches 1000m.
3. the Radio infrared sensing system based on zigbee according to claim 1 and 2, it is characterized in that, described Radio infrared sensor node comprises infrared sensor, ZigBee module and sensing antenna, the output terminal of described infrared sensor connects the input end of ZigBee module, and the output terminal of described ZigBee module connects the sensing antenna.
4. the Radio infrared sensing system based on zigbee according to claim 3 is characterized in that, described infrared sensor is the HC-SR501 human body induction module.
5. the Radio infrared sensing system based on zigbee according to claim 3 is characterized in that, described ZigBee module is the CC2430 chip of integrated ZigBee radio-frequency front-end, internal memory and microcontroller.
6. the Radio infrared sensing system based on zigbee according to claim 1 and 2, it is characterized in that, described ZigBee gateway comprises CC2430 chip, AT91SAM9260 microcontroller and the DM9161 ethernet controller chip of radio-frequency (RF) transceiver of the 2.4GHz of the inner integrated IEEE802.15.4 of meeting standard, and described CC2430 chip, AT91SAM9260 microcontroller and DM9161 ethernet controller chip data successively join and form the ZigBee gateway.
7. the Radio infrared sensing system based on zigbee according to claim 6 is characterized in that, described ZigBee gateway also comprises Flash storer SST39VF160, and itself and AT91SAM9260 microcontroller join.
CN 201320139248 2013-03-25 2013-03-25 Zigbee-based wireless infrared sensor system Expired - Fee Related CN203179260U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103513289A (en) * 2013-09-29 2014-01-15 柳州市宏亿科技有限公司 Infrared sensor of Zigbee
CN110164115A (en) * 2019-06-05 2019-08-23 河南卓正电子科技有限公司 A kind of multi-mode Internet of Things wisdom energy source data acquisition terminal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103513289A (en) * 2013-09-29 2014-01-15 柳州市宏亿科技有限公司 Infrared sensor of Zigbee
CN110164115A (en) * 2019-06-05 2019-08-23 河南卓正电子科技有限公司 A kind of multi-mode Internet of Things wisdom energy source data acquisition terminal
CN110164115B (en) * 2019-06-05 2020-07-03 河南卓正电子科技有限公司 Multi-mode thing networking wisdom energy data acquisition terminal

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20160325