CN203645709U - Kindergarten intelligent monitoring system based on piezoelectric effect - Google Patents
Kindergarten intelligent monitoring system based on piezoelectric effect Download PDFInfo
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- CN203645709U CN203645709U CN201320652773.9U CN201320652773U CN203645709U CN 203645709 U CN203645709 U CN 203645709U CN 201320652773 U CN201320652773 U CN 201320652773U CN 203645709 U CN203645709 U CN 203645709U
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Abstract
The utility model discloses a kindergarten intelligent monitoring system based on piezoelectric effect comprising an embedded gateway, a GPRS module, a Web server, and a Zigbee positioning system. The Zigbee positioning network and the embedded gateway are connected together by a signal, and the embedded gateway and the GPRS module are connected together by the signal, and the GPRS module and the Web server are connected together by the signal. The Zigbee positioning network comprises a Zigbee coordinator, a Zigbee reference node, and a Zigbee positioner. The Zigbee positioner comprises an embedded piezoelectric module, a detection sensor, and a Zigbee controller. The embedded piezoelectric module comprises a piezoelectric material, a super capacitor, a high density lithium battery, and a power supply management circuit. The power supply management circuit comprises a control circuit, a conversion circuit, and a step-down circuit. The control circuit and the conversion circuit are connected together by an electrical signal, and the control circuit and the step-down circuit are connected by a switch. The kindergarten intelligent monitoring system is advantageous in that the self-powered function and the automatic positioning function can be provided, and the real-time monitoring management problem of children in the kindergarten can be improved.
Description
Technical field
The utility model relates to a kind of supervisory control system for kindergarten, particularly a kind of Intelligence In Baogang Kindergarten supervisory control system based on piezoelectric effect.
Background technology
In recent years, the accident such as the child of kindergarten loss, unexpected injury becomes the focus that people pay close attention to day by day.Because child's number is more, lack selfdiscipline, can not reach the real-time monitoring to each student.
The monitoring of traditional kindergarten adopts video technique, and by campus cloth controlled camera head, camera collection video information, is transmitted through the network to Surveillance center, understands child's security situation.But deploy to ensure effective monitoring and control of illegal activities and there is certain limitation due to camera, have some blind areas, be subject to light and other such environmental effects simultaneously, exist some can not leak the situation of monitoring.
Utility model content
The technical problems to be solved in the utility model is the Intelligence In Baogang Kindergarten supervisory control system automatic power function having realized as based on piezoelectric effect, has realized the switching of automatic power and lithium battery power supply simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of Intelligence In Baogang Kindergarten supervisory control system based on piezoelectric effect, comprise embedded gateway, GPRS module and Web server, embedded gateway is connected by signal with GPRS module, GPRS module is connected by signal with Web server, this system also comprises Zigbee fixer network, and this Zigbee fixer network is connected by signal with embedded gateway.
Further, this Zigbee fixer network, comprises Zigbee telegon, Zigbee reference node and Zigbee locator; Between Zigbee locator, Zigbee reference node and Zigbee telegon three, connect by radio communication;
This Zigbee locator is responsible for sending and receiving framing signal,
This Zigbee reference node be responsible for receive and transmission signal strength value to Zigbee locator,
This Zigbee telegon is responsible for collecting the coordinate information that Zigbee locator calculates.
Further, this Zigbee locator, comprises embedded piezo electric module, detecting sensor and Zigbee controller, and embedded piezo electric module is connected with Zigbee controller by wire respectively with detecting sensor;
This Zigbee controller is mainly responsible for processing and operational data, calculates child's particular location,
This detecting sensor for detection of child whether away from Zigbee reference node.
Further, this embedded piezo electric module, comprise piezoelectric, super capacitor, high density lithium battery and electric power management circuit, piezoelectric is connected by rectification circuit with super capacitor, and super capacitor, high density lithium battery and electric power management circuit adopt electronic switch to be connected.
Further, this electric power management circuit, comprises control circuit, conversion circuit and reduction voltage circuit, and between control circuit and conversion circuit, the signal of telecommunication connects, and between control circuit and reduction voltage circuit, connects by switch;
The high voltage of this conversion circuit for described piezoelectric is exported, lower powered alternating current is converted into direct current,
This reduction voltage circuit is used for output voltage to be converted into the 3.3V that described Zigbee locator needs,
This control circuit is mainly responsible for carrying out the switching of hybrid power supply.
Further, this Zigbee controller adopts the SOC (system on a chip) CC2531 for IEEE802.15.4 application, and the inner integrated radiofrequency launcher that is operated in 2.4GHz frequency range has the 8051MCU kernel of low-power consumption.
Further, this Zigbee locator is embedded in the child of kindergarten footwear.
Further, it is the piezoelectric ceramic of 30 millimeters that this piezoelectric is selected diameter, connects with parallel way.
The beneficial effects of the utility model: a kind of Intelligence In Baogang Kindergarten supervisory control system based on piezoelectric effect, wherein, by being used in conjunction with of embedded piezo electric module and electric power management circuit, realize piezoelectric effect hybrid power supply mode, there is self-powered function, easy for installation; Carry out the collection of position signalling by ZigBee fixer network, be transferred to the Internet by Web server, finally realize the location of internet checking and position.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model patent
Fig. 2 is Zigbee fixer network structure chart
Fig. 3 is Zigbee locator structure figure
Fig. 4 is embedded piezo electric module structure chart
Embodiment
Embodiment: this patent is further described below in conjunction with accompanying drawing
This patent adopts piezoelectric effect principle, on piezoelectric, applies certain pressure and can produce electric charge, has realized mechanical energy to electric transformation of energy, adopts super capacitor to store electric charge, and designing power supply management circuit is realized embedded piezo electric module power supply.
The communication technology adopts Zigbee fixer network to position, Zigbee locator is installed in child's footwear, send framing signal to embedded gateway by Zigbee telegon, then send alarm signal by GPRS module, adopt Web server storage data Long-distance Control.
As shown in Figure 1, Intelligence In Baogang Kindergarten supervisory control system, comprises Zigbee fixer network, embedded gateway, GPRS module and Web server.Zigbee fixer network is connected by signal with embedded gateway, and embedded gateway is connected by signal with GPRS module, and GPRS module is connected by signal with Web server.
As preferably, the ARM11 series 6410 of the hardware using Samsung of embedded gateway, software adopts QT design interface, for showing Zigbee fixer network state and positional information.GPRS module is selected SIM900A module, receives alarm signal and coded message, and be forwarded in the Web server with fixed ip address by GPRS module for being responsible for, and realizes uploading of alarm signal and coded message.Web server, as prior art, is not described in detail here.
The operation principle of this Intelligence In Baogang Kindergarten supervisory control system is: by Zigbee fixer network, the child's of kindergarten positional information and the alarm signal collecting are transferred to embedded gateway, embedded gateway is sent to information unification on the Web server of fixing IP by GPRS module, and each child's security situation can be inquired about by Surveillance center of school by Web server; Web server is sent to teacher and the head of a family by GPRS module by child's related news simultaneously, reaches the effect of actual time safety supervision.
As shown in Figure 2, Zigbee fixer network, comprises Zigbee telegon, Zigbee reference node and Zigbee locator.Between Zigbee locator, Zigbee reference node and Zigbee telegon three, connect by radio communication, several Zigbee locators, Zigbee reference node and Zigbee telegon have formed Zigbee fixer network.Zigbee locator is responsible for sending and receiving framing signal, and Zigbee reference node is responsible for reception, and also transmission signal strength value is to Zigbee locator, and Zigbee telegon is responsible for collecting the coordinate information that Zigbee locator calculates.
As preferably, the CC2530 that Zigbee telegon and Zigbee reference node adopt TI company to produce, the CC2531 with positioning function that Zigbee locator adopts TI company to produce.
The operation principle of this Zigbee fixer network is: some fixed position arrangement Zigbee reference nodes in kindergarten, Zigbee reference node can automatically send self coordinate information and signal strength signal intensity RSSI value to Zigbee locator; Zigbee locator calculates the coordinate information of oneself based on signal strength signal intensity RSSI value and link-quality LQI algorithm, finally its coordinate information is sent to Zigbee telegon, and above-mentioned coordinate information is uploaded to embedded gateway by Zigbee telegon.
As shown in Figure 3, Zigbee locator, comprises embedded piezo electric module, detecting sensor and Zigbee controller, embedded piezo electric module and detecting sensor respectively by wire not Zigbee controller be connected.
As preferably, the SOC (system on a chip) CC2531 for IEEE802.15.4 application that Zigbee controller adopts TI company to produce, the inner integrated radiofrequency launcher that is operated in 2.4GHz frequency range, has the 8051MCU kernel of low-power consumption.This MCU kernel is as control chip, and main being responsible for processed and operational data, calculates child's particular location.Detecting sensor adopts heat to release Infrared Detectors, and heat releases that Infrared Detectors is released infrared diode by heat and Fei Nier filter forms.Because human body fixed temperature is at 37 degree, the infrared ray of spontaneous generation 10um, after filtering by Fei Nier filter, gather heat and release on infrared diode, thereby judged whether that infrared ray produces, whether have infrared ray generation can detect child by detection and whether enter the locator from Zigbee.
This Zigbee locator is embedded in footwear, and the infrared ray that closely perception child gives out, in the time that child takes off footwear or loses Zigbee locator, transmits alarm signal by detecting sensor and informs Zigbee telegon.
The operation principle of this Zigbee locator is: be the power supply of Zigbee controller by embedded piezo electric module, the signal of Zigbee controller acquisition testing transducer, is transferred to contiguous Zigbee telegon by coordinate signal and infrared detection signal.
As shown in Figure 4, this embedded piezo electric module, comprises piezoelectric, super capacitor, high density lithium battery and electric power management circuit.Piezoelectric is selected the piezoelectric ceramic of 30 millimeters of diameters, connects with parallel way, and piezoelectric is positioned over heel place.Super capacitor is selected the KORCHIP farad capacitor that 1.5F leakage current is less.Between piezoelectric and super capacitor, connect by rectification circuit.Super capacitor, high density lithium battery and electric power management circuit adopt electronic switch to be connected, when super capacitor output voltage is during higher than operating voltage, electronic switch is selected the super capacitor output of powering, when super capacitor output voltage is during lower than operating voltage, electronic switch is selected the output of powering of high density lithium battery.
Super capacitor, as prior art, is not described in detail herein.
Electric power management circuit, comprises control circuit, conversion circuit and reduction voltage circuit.Between control circuit and conversion circuit, the signal of telecommunication connects, and between control circuit and reduction voltage circuit, connects by switch.
As preferably, conversion circuit adopts integrated chip LTC3588, and with a low-power chip of door for high impedance source designs such as piezoelectric transducers, by the high voltage of piezoelectric output, lower powered alternating current is converted into direct current.
Reduction voltage circuit adopts the step-down chip MAX666 composition that leakage current is less, output voltage is transferred to the 3.3V of Zigbee locator needs.
Control circuit is mainly responsible for carrying out the switching of hybrid power supply, adopts the electronic switch chip ADG801 of low-power consumption to realize.When voltage above super capacitor reaches threshold value, Zigbee controller is powered, when voltage does not reach above electric capacity, adopt high density lithium battery to power.
The utility model and the sharp course of work are: Zigbee reference node is positioned over to each corner of kindergarten at interval of 3m, for Zigbee telegon powers on, carries out networking detection; After completing, Zigbee locator is arranged in the child's of kindergarten footwear, debug whole network state, on embedded gateway, observe each Zigbee locator situation in Zigbee fixer network, log in the real time position state of Web server observation Zigbee locator.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. the Intelligence In Baogang Kindergarten supervisory control system based on piezoelectric effect, comprise embedded gateway, GPRS module and Web server, described embedded gateway is connected by signal with GPRS module, described GPRS module is connected by signal with Web server, it is characterized in that: also comprise Zigbee fixer network, described Zigbee fixer network is connected by signal with described embedded gateway, described Zigbee fixer network comprises Zigbee telegon, Zigbee reference node and Zigbee locator, described Zigbee locator, between Zigbee reference node and Zigbee telegon three, connect by radio communication, described Zigbee locator comprises embedded piezo electric module, detecting sensor and Zigbee controller, described embedded piezo electric module is connected with Zigbee controller by wire respectively with detecting sensor, described embedded piezo electric module comprises piezoelectric, super capacitor, high density lithium battery and electric power management circuit, described piezoelectric is connected by rectification circuit with super capacitor, described super capacitor, high density lithium battery adopts electronic switch to be connected with electric power management circuit, described electric power management circuit comprises control circuit, conversion circuit and reduction voltage circuit, between described control circuit and conversion circuit, the signal of telecommunication connects, between described control circuit and reduction voltage circuit, connect by switch.
2. according to Intelligence In Baogang Kindergarten supervisory control system claimed in claim 1, it is characterized in that: described Zigbee controller adopts the SOC (system on a chip) CC2531 for IEEE802.15.4 application, the inner integrated radiofrequency launcher that is operated in 2.4GHz frequency range, has the 8051MCU kernel of low-power consumption.
3. according to Intelligence In Baogang Kindergarten supervisory control system claimed in claim 1, it is characterized in that: it is the piezoelectric ceramic of 30 millimeters that described piezoelectric is selected diameter, connects with parallel way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652773.9U CN203645709U (en) | 2013-10-22 | 2013-10-22 | Kindergarten intelligent monitoring system based on piezoelectric effect |
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| CN201320652773.9U CN203645709U (en) | 2013-10-22 | 2013-10-22 | Kindergarten intelligent monitoring system based on piezoelectric effect |
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| CN203645709U true CN203645709U (en) | 2014-06-11 |
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| CN201320652773.9U Expired - Fee Related CN203645709U (en) | 2013-10-22 | 2013-10-22 | Kindergarten intelligent monitoring system based on piezoelectric effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187470A (en) * | 2015-05-25 | 2015-12-23 | 吉首大学 | ZigBee and 4G technology based intelligent kindergarten nursing system |
| CN113409545A (en) * | 2021-06-30 | 2021-09-17 | 苏州德品医疗科技股份有限公司 | Baby monitoring system based on Zigbee technology |
| CN116434495A (en) * | 2023-06-08 | 2023-07-14 | 厦门星拉科技有限公司 | Operation construction hidden danger early warning system and method based on electric power Internet of things |
-
2013
- 2013-10-22 CN CN201320652773.9U patent/CN203645709U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187470A (en) * | 2015-05-25 | 2015-12-23 | 吉首大学 | ZigBee and 4G technology based intelligent kindergarten nursing system |
| CN113409545A (en) * | 2021-06-30 | 2021-09-17 | 苏州德品医疗科技股份有限公司 | Baby monitoring system based on Zigbee technology |
| CN116434495A (en) * | 2023-06-08 | 2023-07-14 | 厦门星拉科技有限公司 | Operation construction hidden danger early warning system and method based on electric power Internet of things |
| CN116434495B (en) * | 2023-06-08 | 2023-08-22 | 厦门星拉科技有限公司 | Operation construction hidden danger early warning system and method based on electric power Internet of things |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |