CN107610438A - A kind of sensor based on the transmission of ZigBee signals - Google Patents
A kind of sensor based on the transmission of ZigBee signals Download PDFInfo
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- CN107610438A CN107610438A CN201710847351.XA CN201710847351A CN107610438A CN 107610438 A CN107610438 A CN 107610438A CN 201710847351 A CN201710847351 A CN 201710847351A CN 107610438 A CN107610438 A CN 107610438A
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Abstract
The invention discloses a kind of sensor based on the transmission of ZigBee signals, it includes one-chip computer module, sensor detection module, UART signal and ZigBee signal conversion modules, power module, Voltage stabilizing module, signal level modular converter, device numbering setup module；The power interface of one-chip computer module is connected with power module；The GPIO interface of one-chip computer module is connected with device numbering setup module；The UART2 interfaces of one-chip computer module are connected with sensor detection module；The UART1 interfaces of one-chip computer module are connected with signal level modular converter；Signal level modular converter is connected with UART signal with ZigBee signal conversion modules；UART signal is also connected with ZigBee signal conversion modules with Voltage stabilizing module；Power module is connected with Voltage stabilizing module.Beneficial effects of the present invention：Wiring is simple, improves transmission range, reduces production cost, data security is good, and the data-signal that can detect sensor detection module is converted into ZigBee signals and is transmitted, and sensor can also carry out wired power supply, battery powered.
Description
Technical field
The present invention relates to sensor and wireless communication technique field, particularly a kind of sensing based on the transmission of ZigBee signals
Device.
Background technology
Current infrared intrusion-detection sensor, gate inhibition sense detection sensor and generally use wire communication mode, cloth be present
The shortcomings of line is difficult, troublesome maintenance.Current this kind of sensor popularity rate is still than relatively low, because engineering reliability and cost are all
To control very well, and this kind of sensor also have transparent transmission caused by data safety sex chromosome mosaicism.
And its measurement data signals is switched into ZigBee signals and is transmitted, it can be very good solve problem above.
The content of the invention
In view of the drawbacks described above of prior art, it is an object of the invention to provide a kind of based on the transmission of ZigBee signals
Sensor, wiring is simple, improves transmission range, reduces production cost, data security is good, sensor can be detected into mould
The data-signal that block detects is converted into ZigBee signals and is transmitted, and sensor can also carry out wired power supply, battery supplies
Electricity.
The purpose of the present invention realized by such technical scheme, a kind of sensing based on the transmission of ZigBee signals
Device, it includes：One-chip computer module, sensor detection module, UART signal and ZigBee signal conversion modules, power module,
Voltage stabilizing module, signal level modular converter, device numbering setup module；
The power interface K11 of the one-chip computer module is connected with the first output end K41 of the power module；The power supply
Second output end K42 of module is connected with the input K51 of the Voltage stabilizing module；
The UART2 interfaces K13 of the one-chip computer module is connected with the interface K21 of the sensor detection module；
The UART1 interfaces K14 of the one-chip computer module is connected with the input K61 of the signal level modular converter；
The output end K62 of the signal level modular converter and the UART signal are defeated with ZigBee signal conversion modules
Enter to hold K32 to connect；
The UART signal and the power interface K31 of ZigBee signal conversion modules and the output end of the Voltage stabilizing module
K52 connections；
The GPIO interface K12 of the one-chip computer module is connected with the output end K71 of the device numbering setup module.
Further, the sensor detection module includes：Infrared intrusion detection module, gate inhibition's inductive detection module.
Further, the signal level modular converter includes the first change-over circuit, the second change-over circuit, the 3rd conversion electricity
Road, the 4th change-over circuit；
MOD_TXD in first change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules
Connect；MCU_RX in first change-over circuit is connected with the signaling interface of the one-chip computer module；
MOD_RXD in second change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules
Connect；MCU_TX in second change-over circuit is connected with the signaling interface of the one-chip computer module；
MOD_CFG in 3rd change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules
Connect；MCU_CFG in 3rd change-over circuit is connected with the signaling interface of the one-chip computer module；
MOD_RST in 4th change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules
Connect；MCU_RST in 4th change-over circuit is connected with the signaling interface of the one-chip computer module.
Further, when the MOD_TXD interfaces in the first change-over circuit are high level, the first triode Q3 cut-offs, second
Triode Q1 base stage is high level, and the second triode Q1 cut-offs, now the MCU_RX interfaces in the first change-over circuit are that 5V is high
Level；
When the MOD_TXD interfaces in the first change-over circuit are low level, the first triode Q3 conductings, the second triode Q1
Base stage be low level, the second triode Q1 conductings, now the MCU_RX interfaces in the first change-over circuit are low level.
Further, when the MCU_TX interfaces in the second change-over circuit are high level, the 3rd triode Q4 cut-offs, the four or three
Pole pipe Q2 base stage is high level, and the 4th triode Q2 cut-offs, now the MOD_RXD interfaces in the second change-over circuit are that 3.3V is high
Level；
When the MCU_TX interfaces in the second change-over circuit are low level, the 3rd triode Q4 conductings, the 4th triode Q2
Base stage be low level, the 4th triode Q2 conductings, now the MOD_RXD interfaces in the second change-over circuit are low level.
Further, when the MCU_CFG interfaces in the 3rd change-over circuit are high level, the 5th triode Q7 cut-offs, the 6th
Triode Q5 base stage is high level, and the 6th triode Q5 cut-offs, now the MOD_CFG interfaces in the 3rd change-over circuit are 3.3V
High level；
When the MCU_CFG interfaces in the 3rd change-over circuit are low level, the 5th triode Q7 conductings, the 6th triode Q5
Base stage be low level, the 6th triode Q5 conductings, now the MOD_CFG interfaces in the 3rd change-over circuit are low level.
Further, when the MCU_RST interfaces in the 4th change-over circuit are high level, the 7th triode Q8 cut-offs, the 8th
Triode Q6 base stage is high level, and the 8th triode Q6 cut-offs, now the MOD_RST interfaces in the 4th change-over circuit are 3.3V
High level；
When the MCU_RST interfaces in the 4th change-over circuit are low level, the 7th triode Q8 conductings, the 8th triode Q6
Base stage be low level, the 8th triode Q6 conductings, now the MOD_RST interfaces in the 4th change-over circuit are low level.
Further, the power module is the power supply that size is 5V direct currents, and the Voltage stabilizing module includes TCP voltage stabilizings electricity
Source, the TCP voltage-stabilized power supplies size are 3.3V dc source.
Further, the power supply mode of the power module includes wired power supply, battery powered.
Further, the one-chip computer module is STM32 single-chip microcomputers；The one-chip computer module includes 8 GPIO interfaces
K12。
By adopting the above-described technical solution, the present invention has the advantage that：
(1) wiring of complexity is no longer needed；Transmission range is greatly improved；
(2) data-signal that can detect sensor detection module is converted into ZigBee signals and is transmitted；
(3) modular design reduces production cost；
(4) encryption of data has ensured the safe and reliable of data.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows：
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the signal level modular converter circuit connection diagram of the present invention.
Fig. 3 is the circuit connection diagram of the infrared intrusion detection module of the present invention.
Fig. 4 is the circuit connection diagram of gate inhibition's inductive detection module of the present invention.
In figure, 1 be one-chip computer module, 2 be sensor detection module, 3 be UART signal and ZigBee signal conversion modules,
4 it is power module, 5 be Voltage stabilizing module, 6 be signal level modular converter, 7 is device numbering setup module.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2；A kind of sensor based on the transmission of ZigBee signals, it includes：One-chip computer module 1, pass
Sensor detection module 2, UART signal and ZigBee signal conversion modules 3, power module 4, Voltage stabilizing module 5, signal level conversion
Module 6, device numbering setup module 7；The one-chip computer module 1 is STM32 single-chip microcomputers；The one-chip computer module 1 includes 8
GPIO interface K12.
The power interface K11 of the one-chip computer module 1 is connected with the first output end K41 of the power module 4；The electricity
Second output end K42 of source module 4 is connected with the input K51 of the Voltage stabilizing module 5；Externally fed is given by power module 4
One-chip computer module 1, sensor detection module 2, Voltage stabilizing module 5, signal level modular converter 6, device numbering setup module 7 supply
Electricity, power supply size are 5V dc sources.
Wherein, externally fed can use the mode of wired power supply, can also use battery powered mode.Externally fed
5V DC voltages be connected to the output interface of power module 4.The Voltage stabilizing module 5 includes TCP voltage-stabilized power supplies, the TCP
Voltage-stabilized power supply size is 3.3V dc source.TCP voltage of voltage regulation 3.3V is connected to the output interface of Voltage stabilizing module 5.
The UART2 interfaces K13 of the one-chip computer module 1 is connected with the interface K21 of the sensor detection module 2；
The UART1 interfaces K14 of the one-chip computer module 1 is connected with the input K61 of the signal level modular converter 6；
The output end K62 of the signal level modular converter 6 and the UART signal and ZigBee signal conversion modules 3
Input K32 connections；
The UART signal and the power interface K31 of ZigBee signal conversion modules 3 and the output end of the Voltage stabilizing module 5
K52 connections；Power module 4 provides power supply after decompression to UART signal and ZigBee signal conversion modules 3 to Voltage stabilizing module 5
Power supply；Voltage swing after decompression is 3.3V dc sources.
The GPIO interface K12 of the one-chip computer module 1 is connected with the output end K71 of the device numbering setup module 7；It is logical
The device numbering set is crossed in device numbering setup module 7, the different switching dress in same network can be distinguished from the background
Put the signal of transmission.
Signal level modular converter is made up of components such as a series of resistance and triodes.The signal level modular converter
6 include the first change-over circuit, the second change-over circuit, the 3rd change-over circuit, the 4th change-over circuit；
MOD_TXD and the UART signal and the signaling interface of ZigBee signal conversion modules 3 in first change-over circuit
Connection；MCU_RX in first change-over circuit is connected with the signaling interface of the one-chip computer module 1；
MOD_RXD and the UART signal and the signaling interface of ZigBee signal conversion modules 3 in second change-over circuit
Connection；MCU_TX in second change-over circuit is connected with the signaling interface of the one-chip computer module 1；
MOD_CFG and the UART signal and the signaling interface of ZigBee signal conversion modules 3 in 3rd change-over circuit
Connection；MCU_CFG in 3rd change-over circuit is connected with the signaling interface of the one-chip computer module 1；
MOD_RST and the UART signal and the signaling interface of ZigBee signal conversion modules 3 in 4th change-over circuit
Connection；MCU_RST in 4th change-over circuit is connected with the signaling interface of the one-chip computer module 1.
The operation principle of signal level modular converter 6, when the MOD_TXD interfaces in the first change-over circuit are high level,
First triode Q3 ends, and the second triode Q1 base stage is high level, and the second triode Q1 ends, now the first change-over circuit
In MCU_RX interfaces be 5V high level；
When the MOD_TXD interfaces in the first change-over circuit are low level, the first triode Q3 conductings, the second triode Q1
Base stage be low level, the second triode Q1 conductings, now the MCU_RX interfaces in the first change-over circuit are low level.
When the MCU_TX interfaces in the second change-over circuit are high level, the 3rd triode Q4 cut-offs, the 4th triode Q2
Base stage be high level, the 4th triode Q2 cut-offs, now the MOD_RXD interfaces in the second change-over circuit are 3.3V high level；
When the MCU_TX interfaces in the second change-over circuit are low level, the 3rd triode Q4 conductings, the 4th triode Q2
Base stage be low level, the 4th triode Q2 conductings, now the MOD_RXD interfaces in the second change-over circuit are low level.
Similarly, when the MCU_CFG interfaces in the 3rd change-over circuit are high level, the 5th triode Q7 cut-offs, the six or three
Pole pipe Q5 base stage is high level, and the 6th triode Q5 cut-offs, now the MOD_CFG interfaces in the 3rd change-over circuit are that 3.3V is high
Level；
When the MCU_CFG interfaces in the 3rd change-over circuit are low level, the 5th triode Q7 conductings, the 6th triode Q5
Base stage be low level, the 6th triode Q5 conductings, now the MOD_CFG interfaces in the 3rd change-over circuit are low level.
Similarly, when the MCU_RST interfaces in the 4th change-over circuit are high level, the 7th triode Q8 cut-offs, the eight or three
Pole pipe Q6 base stage is high level, and the 8th triode Q6 cut-offs, now the MOD_RST interfaces in the 4th change-over circuit are that 3.3V is high
Level；
When the MCU_RST interfaces in the 4th change-over circuit are low level, the 7th triode Q8 conductings, the 8th triode Q6
Base stage be low level, the 8th triode Q6 conductings, now the MOD_RST interfaces in the 4th change-over circuit are low level.
Embodiment 1, as shown in figure 3, the sensor detection module is infrared intrusion detection module, by infrared intrusion detection
The data-signal that module detects is converted to the transmitting procedure of ZigBee wireless signals.
First, the data-signal detected is converted to UART signal and by single-chip microcomputer mould by infrared intrusion detection module 2
The UART2 interfaces of block 1 are transferred to one-chip computer module 1 and operation are encrypted.
Secondly, the UART signal after encryption is transferred to by one-chip computer module 1 by the UART1 interfaces K14 of one-chip computer module 1
Signal level modular converter 6 carries out level conversion operation.
Finally, the UART signal after level conversion is transferred to UART letters by signal level modular converter 6 by output end K62
Number with ZigBee signal conversion modules 3.UART signal is with ZigBee signal conversion modules 3 by after encryption and level conversion
UART signal is converted to ZigBee signals, and is sent by way of TCP/IP data frames to background server.
Infrared intrusion detection module detection circuit connecting relation is as follows：Infrared induction module U3 uses the human bodies of HC-SR 501
Infrared inductor, it includes 3 interfaces, and wherein U3 first interface connects positive source, accesses 5V power supplys；U3 second interface
For signal output interface, U3 second interface access resistance connects for the first interface after 1K current-limiting resistance R3 with optical coupling module U5
Connect, wherein optical coupling module U5 uses TLP521-1.
The GPIO interface of one-chip computer module 1 is linked into by current-limiting resistance R3, optical coupling module U5；U3 the 3rd interface is electricity
Source negative pole, it is grounded GND；Optical coupling module U5 second interface and the 3rd interfacing ground, U5 the 4th interface are 1K's by resistance
First resistor R24 is connected with positive source.
Working sensor state, the infrared continuous firing of intrusion detection module 2, by the invasion signal detected by HC-SR
The second interface output of 501 human body infrared inductors.When HC-SR 501 second interface is low level, optical coupling module U5 is not
Conducting, the GPIO interface of one-chip computer module 1 is high level；When the interface is high level, optical coupling module U5 conductings, single-chip microcomputer mould
The GPIO interface of block 1 is low level.
Embodiment 2, as shown in figure 4, the sensor detection module is gate inhibition's inductive detection module, gate inhibition is sensed and detected
The data-signal that module detects is converted to the transmitting procedure of ZigBee wireless signals.
First, the data-signal detected is converted to UART signal and by single-chip microcomputer mould by gate inhibition's inductive detection module 2
The UART2 interfaces of block 1 are transferred to one-chip computer module 1 and operation are encrypted.
Secondly, the UART signal after encryption is transferred to by one-chip computer module 1 by the UART1 interfaces K14 of one-chip computer module 1
Signal level modular converter 6 carries out level conversion operation.
Finally, the UART signal after level conversion is transferred to UART letters by signal level modular converter 6 by output end K62
Number with ZigBee signal conversion modules 3.UART signal is with ZigBee signal conversion modules 3 by after encryption and level conversion
UART signal is converted to ZigBee signals, and is sent by way of TCP/IP data frames to background server.
The circuit connection of gate inhibition's inductive detection module 2 is as follows：One socket of induction module P6 connections, the socket connect
An open type magnetic induction module is connect, the open type induction module is off-state when nearby magnetic field be present, if magnetic is not present
, then it is on-state.Open type induction module is arranged on doorframe, and magnet is mounted on a door, the open type magnetic induction mould
Block is used cooperatively with magnet.
The induction module P6 also includes first interface and second interface；The first interface is connected with supply voltage,
Access 5V supply voltages；The second interface and resistance are that 1k current-limiting resistance R46 be connected, the current-limiting resistance R46 other end and
Optical coupling module U8 first interface connection；Optical coupling module U8 second interfaces are grounded respectively with the 3rd interface；The optical coupling module U8
The 4th interface and resistance be 1K first resistor R44 be connected, the first resistor R44 other end and the one-chip computer module 1
GPIO interface K13 connections.The optical coupling module U8 uses TLP 521-1 electronic components.
When door is closed, open type magnetic induction module is off-state, and now optical coupling module U8 is not turned on, single
The GPIO interface of piece machine module 1 is high level；When door is in open mode, open type magnetic induction module is on-state, light
Coupling module U8 is turned on, and the GPIO interface of one-chip computer module 1 is low level.
The device have the advantages that：
(1) wiring of complexity is no longer needed；Transmission range is greatly improved；
(2) data-signal that can detect sensor detection module is converted into ZigBee signals and is transmitted；
(3) modular design reduces production cost；
(4) encryption of data has ensured the safe and reliable of data.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (10)
1. a kind of sensor based on the transmission of ZigBee signals, it is characterised in that it includes：One-chip computer module (1), sensor
Detection module (2), UART signal and ZigBee signal conversion modules (3), power module (4), Voltage stabilizing module (5), signal level
Modular converter (6), device numbering setup module (7)；
The power interface K11 of the one-chip computer module (1) is connected with the first output end K41 of the power module (4)；The electricity
Second output end K42 of source module (4) is connected with the input K51 of the Voltage stabilizing module (5)；
The UART2 interfaces K13 of the one-chip computer module (1) is connected with the interface K21 of the sensor detection module (2)；
The UART1 interfaces K14 of the one-chip computer module (1) is connected with the input K61 of the signal level modular converter (6)；
The output end K62 of the signal level modular converter (6) and the UART signal and ZigBee signal conversion modules (3)
Input K32 connections；
The UART signal and the power interface K31 of ZigBee signal conversion modules (3) and the output end of the Voltage stabilizing module (5)
K52 connections；
The GPIO interface K12 of the one-chip computer module (1) is connected with the output end K71 of the device numbering setup module (7).
2. the sensor as claimed in claim 1 based on the transmission of ZigBee signals, it is characterised in that the sensor detects mould
Block (2) includes：Infrared intrusion detection module, gate inhibition's inductive detection module.
3. the sensor as claimed in claim 1 based on the transmission of ZigBee signals, it is characterised in that the signal level conversion
Module (6) includes the first change-over circuit, the second change-over circuit, the 3rd change-over circuit, the 4th change-over circuit；
MOD_TXD in first change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules (3)
Connect；MCU_RX in first change-over circuit is connected with the signaling interface of the one-chip computer module (1)；
MOD_RXD in second change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules (3)
Connect；MCU_TX in second change-over circuit is connected with the signaling interface of the one-chip computer module (1)；
MOD_CFG in 3rd change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules (3)
Connect；MCU_CFG in 3rd change-over circuit is connected with the signaling interface of the one-chip computer module (1)；
MOD_RST in 4th change-over circuit connects with the UART signal and the signaling interface of ZigBee signal conversion modules (3)
Connect；MCU_RST in 4th change-over circuit is connected with the signaling interface of the one-chip computer module (1).
4. the sensor as claimed in claim 3 based on the transmission of ZigBee signals, it is characterised in that when in the first change-over circuit
MOD_TXD interfaces when being high level, the first triode Q3 cut-offs, the second triode Q1 base stage is high level, the two or three pole
Pipe Q1 ends, and now the MCU_RX interfaces in the first change-over circuit are 5V high level；
When the MOD_TXD interfaces in the first change-over circuit are low level, the first triode Q3 conductings, the second triode Q1 base
Extremely low level, the second triode Q1 conductings, now the MCU_RX interfaces in the first change-over circuit are low level.
5. the sensor as claimed in claim 3 based on the transmission of ZigBee signals, it is characterised in that when in the second change-over circuit
MCU_TX interfaces when being high level, the 3rd triode Q4 cut-offs, the 4th triode Q2 base stage is high level, the 4th triode
Q2 ends, and now the MOD_RXD interfaces in the second change-over circuit are 3.3V high level；
When the MCU_TX interfaces in the second change-over circuit are low level, the 3rd triode Q4 conductings, the 4th triode Q2 base
Extremely low level, the 4th triode Q2 conductings, now the MOD_RXD interfaces in the second change-over circuit are low level.
6. the sensor as claimed in claim 3 based on the transmission of ZigBee signals, it is characterised in that when in the 3rd change-over circuit
MCU_CFG interfaces when being high level, the 5th triode Q7 cut-offs, the 6th triode Q5 base stage is high level, the six or three pole
Pipe Q5 ends, and now the MOD_CFG interfaces in the 3rd change-over circuit are 3.3V high level；
When the MCU_CFG interfaces in the 3rd change-over circuit are low level, the 5th triode Q7 conductings, the 6th triode Q5 base
Extremely low level, the 6th triode Q5 conductings, now the MOD_CFG interfaces in the 3rd change-over circuit are low level.
7. the sensor as claimed in claim 3 based on the transmission of ZigBee signals, it is characterised in that when in the 4th change-over circuit
MCU_RST interfaces when being high level, the 7th triode Q8 cut-offs, the 8th triode Q6 base stage is high level, the eight or three pole
Pipe Q6 ends, and now the MOD_RST interfaces in the 4th change-over circuit are 3.3V high level；
When the MCU_RST interfaces in the 4th change-over circuit are low level, the 7th triode Q8 conductings, the 8th triode Q6 base
Extremely low level, the 8th triode Q6 conductings, now the MOD_RST interfaces in the 4th change-over circuit are low level.
8. the sensor as claimed in claim 1 based on the transmission of ZigBee signals, it is characterised in that the power module (4)
For the power supply that size is 5V direct currents, the Voltage stabilizing module (5) includes TCP voltage-stabilized power supplies, and the TCP voltage-stabilized power supplies size is
3.3V dc source.
9. the sensor as claimed in claim 8 based on the transmission of ZigBee signals, it is characterised in that the power module (4)
Power supply mode include wired power supply, battery powered.
10. the sensor as claimed in claim 1 based on the transmission of ZigBee signals, it is characterised in that the one-chip computer module
(1) it is STM32 single-chip microcomputers；The one-chip computer module (1) includes 8 GPIO interface K12.
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Cited By (1)
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| CN108684004A (en) * | 2018-03-28 | 2018-10-19 | 重庆七彩虹数码科技有限公司 | The sensor group transmitted based on battery powered and Zigbee or 4G |
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