CN101320511A - Wireless reminding alarm device - Google Patents
Wireless reminding alarm device Download PDFInfo
- Publication number
- CN101320511A CN101320511A CNA2007100156912A CN200710015691A CN101320511A CN 101320511 A CN101320511 A CN 101320511A CN A2007100156912 A CNA2007100156912 A CN A2007100156912A CN 200710015691 A CN200710015691 A CN 200710015691A CN 101320511 A CN101320511 A CN 101320511A
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- CN
- China
- Prior art keywords
- zigbee chip
- antenna
- alarm device
- capacitor
- reminding alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to a wireless reminding and alarming device. A main transmitting and receiving device comprises a second Zigbee chip; the second Zigbee chip is connected with an antenna ANT2 through a network MN2 and a switch SW2 which match with an antenna; the second Zigbee chip is also connected with a buzzer SP; an auxiliary transmitting and receiving device comprises a first Zigbee chip; the first Zigbee chip is connected with an antenna ANT1 through a network MN1 and a switch SW1 which match with the antenna; the antenna ANT1 is connected with the antenna ANT2 through wireless radio-frequency signals. When the user is in a certain distance away from the monitored object, the receiver carried by the user can emit reminding signals to remind the user. The wireless reminding and alarming device has the characteristic of high accuracy, low power consumption and economical and practical performance.
Description
Technical field
The present invention relates to a kind of wireless reminding alarm device, specifically, be a kind of realize being subjected to monitored object away from or the isolated plant of warning reminding during near owner's setpoint distance.
Background technology
Existing wireless reminding alarm device, the simple transceiver of most uses because its frequency is subjected to the influence of circuit stability and environment, can often occur reporting by mistake.Another kind is used for the device that gun are reported to the police from body, only is applicable to metal.In addition, the most discrete devices that use of existing separation wireless reminding alarm device realize that power consumption is big, and volume is big, and is economical and practical inadequately.
Summary of the invention
Technical matters to be solved by this invention is, a kind of accuracy height is provided, and power consumption is little, economical and practical wireless reminding alarm device, when transmitter and receiver leave or near to certain apart from the time, send the reminding alarm signal automatically.
Technical scheme of the present invention is as follows:
A kind of wireless reminding alarm device, comprise main transceiver and secondary transceiver, it is characterized in that: main transceiver comprises the 2nd Zigbee chip, the 2nd Zigbee chip is connected antenna ANT2 by antenna matching network MN2 with switch SW 2, and the 2nd Zigbee chip also is connected with hummer SP; Secondary transceiver comprises a Zigbee chip, and a Zigbee chip is connected antenna ANT1 by antenna matching network MN1 with switch SW 1; Connect by radio-frequency signal between antenna ANT1 and the antenna ANT2.
The 2nd Zigbee core passes through resistance R
3, resistance R
4, transistor T
1Connect hummer SP.
The 2nd Zigbee chip is connected with LED 1 by resistance R 1, also passes through resistance R
2Be connected with LED 2.
The one Zigbee chip is connected with crystal oscillator Xtal-1, capacitor C
1And capacitor C
2The 2nd Zigbee chip is connected with crystal oscillator Xtal-2, capacitor C
6And capacitor C
7
The one Zigbee chip is connected with decoupling capacitor C
3, decoupling capacitor C
4With decoupling capacitor C
5The 2nd Zigbee chip is connected with decoupling C
8, decoupling C
9With decoupling C
10
The utlity model has following good effect: when the owner be subjected to monitored object leave certain apart from the time, be carried at owner's receiver on one's body and just send alerting signal, remind the owner.Have the accuracy height, power consumption is little, economical and practical characteristics.In the middle of practical application, the owner carries receiver, and transmitter then is installed on the object of being monitored, such as, handbag, mobile phone, children, or the like.
But this wireless reminding alarm device is applied in reverse also, promptly when the object distance owner who is monitored less than set apart from the time, wireless reminding alarm device then sends the reminding alarm signal.
Description of drawings
Fig. 1 is the circuit diagram of secondary transceiver.
Fig. 2 is the circuit diagram of main transceiver.
Embodiment
Each wireless reminding alarm device is made up of a pair of main transceiver and secondary transceiver.Be contained in secondary transceiver (as Fig. 1) on the controll plant to be emitted as the master.The main transceiver (as Fig. 2) that the owner held is then to be received as the master.Each transceiver has the identification code of oneself, so that be different from other transceiver.Physical circuit can be changed slightly according to the difference of selected transceiver chip.
The operation of wireless reminding alarm device is controlled by the microcontroller software in the transceiver.The secondary transceiver that is installed on the controll plant produces radiofrequency signal through antenna matching network MN1, switch SW 1, by antenna ANT1, regularly or send continuously.Switch SW 1 is controlled by a Zigbee chip ZBT1, changes between reception and emission function on demand.Antenna matching network MN1 is made up of passive element, is used to reach the best power coupling of antenna ANT1 and radiating circuit.
When being installed in owner's main transceiver on one's body in range of receiving the time, receive the signal that secondary transceiver sends by a Zigbee chip ZBT2 by antenna ANT2, switch SW 2 and antenna matching network MN2, with signal decoding, obtain identification code.When identification be with own corresponding secondary transceiver after, still in range of receiving, main transceiver does not send any signal to the secondary transceiver that proves controll plant, but still is in accepting state.At this moment, if desired, receiver can send signal and pass through resistance R
1, driven for emitting lights diode (LED) 1, luminous prompting owner represents that monitored object still is in the scope that sets.Range of receiving can be set according to the emissive power of transmitter and the sensitivity of receiver.
When secondary transceiver was not in range of receiving, main transceiver did not receive the signal and the identification code of transmitter.Conclude that then secondary transceiver not in the scope of setting, so just pass through hummer SP and LED 2, sends alerting signal, remind to the owner.At this moment, receiver sends two drive signals, and wherein, a signal passes through resistance R
2, 2 work of driven for emitting lights diode (LED), another signal is through overdrive circuit excitation hummer SP work.Driving circuit is by resistance R
3, R
4And transistor T 1 is formed.Resistance R
3And R
4, be the biasing circuit of transistor T 1.When receiver output high level, transistor T
1Conducting drives hummer SP, sends alerting signal.
Secondary transceiver and main transceiver are powered respectively by battery E1 and E2.The various power supplys and the reference voltage that provide emission, receiver and microcontroller required are provided for power circuit REG1 and REG2.Capacitor C
3, C
4And C
5Be the decoupling capacitor of transmitter, C
8, C
9And C
10Decoupling capacitor for receiver.Crystal oscillator Xtal-1, capacitor C
1And C
2With transceiver chip ZBT1, in circuit produce together transmitter required control clock signal.Crystal oscillator Xtal-2, capacitor C
6And C
7Circuit in chip ZBT2 produce receiver required control clock signal.
Claims (5)
1, a kind of wireless reminding alarm device, comprise main transceiver and secondary transceiver, it is characterized in that: main transceiver comprises the 2nd Zigbee chip, the 2nd Zigbee chip is connected antenna ANT2 by antenna matching network MN2 with switch SW 2, and the 2nd Zigbee chip also is connected with hummer SP; Secondary transceiver comprises a Zigbee chip, and a Zigbee chip is connected antenna ANT1 by antenna matching network MN1 with switch SW 1; Connect by radio-frequency signal between antenna ANT1 and the antenna ANT2.
2, wireless reminding alarm device as claimed in claim 1 is characterized in that: the 2nd Zigbee core passes through resistance R
3, resistance R
4, transistor T
1Connect hummer SP.
3, wireless reminding alarm device as claimed in claim 1 or 2 is characterized in that: the 2nd Zigbee chip is connected with LED 1 by resistance R 1, also passes through resistance R
2Be connected with LED 2.
4, wireless reminding alarm device as claimed in claim 1 or 2 is characterized in that: a Zigbee chip is connected with crystal oscillator Xtal-1, capacitor C
1And capacitor C
2The 2nd Zigbee chip is connected with crystal oscillator Xtal-2, capacitor C
6And capacitor C
7
5, wireless reminding alarm device as claimed in claim 1 or 2 is characterized in that: a Zigbee chip is connected with decoupling capacitor C
3, decoupling capacitor C
4With decoupling capacitor C
5The 2nd Zigbee chip is connected with decoupling C
8, decoupling C
9With decoupling C
10
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100156912A CN101320511A (en) | 2007-06-07 | 2007-06-07 | Wireless reminding alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100156912A CN101320511A (en) | 2007-06-07 | 2007-06-07 | Wireless reminding alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101320511A true CN101320511A (en) | 2008-12-10 |
Family
ID=40180539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100156912A Withdrawn CN101320511A (en) | 2007-06-07 | 2007-06-07 | Wireless reminding alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101320511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164932A (en) * | 2011-12-16 | 2013-06-19 | 希姆通信息技术（上海）有限公司 | Alarm system and alarm method by using Zigbee protocol |
-
2007
- 2007-06-07 CN CNA2007100156912A patent/CN101320511A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164932A (en) * | 2011-12-16 | 2013-06-19 | 希姆通信息技术（上海）有限公司 | Alarm system and alarm method by using Zigbee protocol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |