CN106933093A - A kind of wireless timing system based on zigbee communications and Beidou dual-mode time service - Google Patents
A kind of wireless timing system based on zigbee communications and Beidou dual-mode time service Download PDFInfo
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- CN106933093A CN106933093A CN201710127310.3A CN201710127310A CN106933093A CN 106933093 A CN106933093 A CN 106933093A CN 201710127310 A CN201710127310 A CN 201710127310A CN 106933093 A CN106933093 A CN 106933093A
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
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Abstract
The invention discloses a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service, unit and timing system parameter optimization module during including time signal receiving unit, main control unit, correcting delay signal broadcast unit, correcting delay signal receiving unit, school, unit includes main equipment, some node devices and third party device during school, main equipment is connected with first from node device, and each is connected from node device with third party device；It is synchronous that main equipment pair enters row clock with first that main equipment is connected from node device；Each carries out implementation time service from node device by Last from node device by protocol massages；Each from node device enters row clock synchronization to the third party device being attached thereto；Each supports function of network exchange from node device, and multi stage switch network is formed hand in hand between node device from node device.The present invention is easy to lay, and can realize high-precision clock synchronization with root.
Description
Technical field
The present invention relates to a kind of wireless timing system, and in particular to a kind of to be communicated and Beidou dual-mode time service based on zigbee
Wireless timing system.
Background technology
As Service of Timing by Satellite is gradually improved, the time signal that high accuracy clock and watch are sent by receiving satellite mostly is carried out
During school, but, the antenna for receiving time signal all sets up out of doors, and indoor terminal clock and watch, must cloth indoors to implement during school
Cable is put to transmit time signal.When then, to synchronize school to indoor multiple terminal clock and watch, must arrange indoors
Complicated cable network is solving the problems, such as the synchronous transfer of correcting delay signal.
The physical layer of correcting delay signal broadcast unit generally uses narrow band communication system or multi-carrier communication system, diffraction simultaneously
Ability, anti-interference, anti-intercepting and capturing ability are poor, the data that each sensor is collected not attach its where geographical position
Information increased the workload of user, it is necessary to the later stage is arranged according to numbering, once while dtr signal or no signal
When regional, the transmission of data just cannot be completed, the limitation for using is very big, be verified by long-term substantial amounts of engineering practice and learnt,
The procotol of current research rests on theoretic, causes practicality, robustness, the interference free performance of real network system
Poor, network life cycle is shorter, it is impossible to meet actual demand.
The content of the invention
To solve the above problems, the invention provides it is a kind of based on zigbee communication and Beidou dual-mode time service wireless school when
System.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of wireless timing system based on zigbee communications and Beidou dual-mode time service, including
The reception antenna being disposed in the outdoor, during for by the UTC standards of gps satellite/big-dipper satellite transmitting time signal by
Outdoor reception is to indoor time signal receiving unit；
Main control unit, electrically connects with the time signal receiving unit, when time signal is produced during according to the UTC standards
Clock correcting delay signal；
Correcting delay signal broadcast unit, is electrically connected with the main control unit, and indoor clock is implemented using ZigBee ad-hoc networks
Correcting delay signal broadcast；
Correcting delay signal receiving unit, with correcting delay signal broadcast unit wireless communication connection, believes during for receiving by school
The clock correcting delay signal of number broadcast unit broadcast；
Unit during school, including main equipment, some node devices and third party device, the main equipment and first are from node
Equipment is connected, and each is connected from node device with third party device；Be connected with main equipment first of the main equipment pair
Enter row clock synchronization from node device；Each is carried out from node device by Last from node device by protocol massages
Time service；Each from node device enters row clock synchronization to the third party device being attached thereto；Each is equal from node device
Function of network exchange is supported, multi stage switch network is formed hand in hand between node device from node device；
Timing system parameter optimization module, the parameters simulation simulative optimization for being calibrated system；
The correcting delay signal broadcast unit includes
Sensor layer, is made up of multiple sensors, big dipper module is mounted in each sensor, for gathering number of targets
According to the data for being collected are exported to information fusion matching layer through noise suppression module, gain amplification module successively；
Information fusion matching layer, for the data that are collected each sensor positioning number of corresponding big dipper module
According to exported after being marked to information processing layer；
Information processing layer, is made up of multiple message processing devices, and each message processing device is upper as corresponding sensor
Level equipment, for processing the information that sensor is uploaded, and is controlled to sensor；
Information fused layer, is made up of multiple intelligence fusion equipment, as the higher level equipment of each message processing device, is used
In the information that each message processing device of reception is reported, and fusion treatment is carried out, form information；
Trunking, is accessed based on link minimum principle and is made up of intelligence fusion equipment, message processing device and sensor
Wireless sensor network, for the relay forwarding of information between each layer.
Preferably, the timing system parameter optimization module includes
Mathematical Models module, for setting up number by Flac3D according to the data of correcting delay signal broadcast unit institute broadcast
Learn model；
Virtual parameter actuator, for driving Parameters variation, pass is set up with each element in Mathematical Models module
After system, parameter can be changed in specified scope, such that it is able to drive analysis method to be carried out for different parameters
Calculate and solve；
Virtual parameter module, for inserted in Mathematical Modeling it is all types of can the corresponding result of direct access or information
The logic unit of target；
Simulation analysis module, the parameter of design variable, design object and design constraint can be decomposed into for being input into, be calculated
Method, and be unit, characteristic and load by |input paramete, algorithm partition, it is applied in the module specified respectively；
Result is fed back to imitative by the parameter or algorithm that the virtual actuator performs the input of simulation analysis module by circulating
True analysis module, the simulation analysis module automatically extracts data and shows to virtual parameter module, the virtual parameter module automatically
Registration evidence.
Preferably, the main equipment includes MCU units, clock source and a ZigBee ad-hoc network interface lists of main equipment
Unit；The MCU units of main equipment are main control unit, the MCU units of main equipment respectively with clock source and a ZigBee ad-hoc networks
Interface unit is connected.
Preferably, it is described from node device, including MCU units, the 2nd ZigBee ad-hoc network interfaces from node device
Unit, the 3rd ZigBee ad-hoc networks interface unit, local clock unit, clock generator and ZigBee ad-hoc network interface lists
Unit；The output of clock generator respectively with the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc network interface lists
Unit's connection, the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit with from node device
MCU units are connected, and local clock unit and ZigBee ad-hoc networks interface unit are sent out as the input of clock generator with clock
Raw device is connected；It is connected with up ZigBee ad-hoc networks interface unit from the MCU units of node device.
Preferably, network exchange and data processing, ZigBee ad-hoc network interface lists are realized from the MCU units of node device
Unit, the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit are used to realize sync message agreement
Parsing, data receiver and transmission；ZigBee ad-hoc networks interface unit be used for realize this from node device with upper one from node
The communication of equipment or main equipment；2nd ZigBee ad-hoc networks interface unit be used for realize this from node device with it is next from
The communication of node device；3rd ZigBee ad-hoc networks interface unit is used to realize that this is logical with third party device from node device
Letter.
Preferably, network link layer is used and is based on sound state hybrid MAC protocols according to type of service.
Preferably, up ZigBee ad-hoc networks interface unit is connected with upstream plant, carries out data double-way communication, and connect
The sync message information from upstream plant of receipts, gives the MCU units from node device, by the MCU from node device after decoding
Unit controls the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit with up ZigBee certainly
Set of network interfaces unit carries out Absolute Time Synchronization；Up ether net unit gives the ethernet clock of upstream plant simultaneously
Clock generator, is divided into two-way synchronizing clock signals and gives the 2nd ZigBee ad-hoc network interface units respectively by clock generator
With the 3rd ZigBee ad-hoc network interface units, Phase synchronization is carried out；So far, absolute time is synchronous with time phase realization.
The invention has the advantages that：
The system cascade hand in hand from node device by being respectively made up of, and network topology is simple, only by north between each node
Bucket module and ZigBee module connection, it is easy to lay；Each equipment only enters row clock synchronization to its child node and third party device, on
Downlink is full symmetric, can realize high-precision clock synchronization with root；Respectively function of network exchange, nothing are provided with from node device
Other equipment is needed, simple and reliable, low cost.The characteristics of the system has remote clock synchronization accuracy high；By Mathematical Modeling
The self-defined of module, virtual parameter actuator and virtual parameter module and simulating analysis is set up, timing system is realized
The detection of energy and the optimization of parameter.
Brief description of the drawings
Fig. 1 is a kind of system of the wireless timing system based on zigbee communications and Beidou dual-mode time service of the embodiment of the present invention
Block diagram.
Fig. 2 is the structured flowchart of correcting delay signal broadcast unit in the embodiment of the present invention.
The hardware block diagram of unit when Fig. 3 is embodiment of the present invention lieutenant colonel.
Fig. 4 is the hardware block diagram of main equipment in the embodiment of the present invention.
Fig. 5 is from node device hardware block diagram in the embodiment of the present invention.
Specific embodiment
In order that objects and advantages of the present invention become more apparent, the present invention is carried out further with reference to embodiments
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
As Figure 1-Figure 5, the embodiment of the invention provides a kind of nothing based on zigbee communications and Beidou dual-mode time service
Line timing system, including
The reception antenna being disposed in the outdoor；
Time signal is believed by outdoor reception to indoor time service during for by the UTC standards of gps satellite/big-dipper satellite transmitting
Number receiving unit；
Main control unit, electrically connects with the time signal receiving unit, when time signal is produced during according to the UTC standards
Clock correcting delay signal；
Correcting delay signal broadcast unit, is electrically connected with the main control unit, and indoor clock is implemented using ZigBee ad-hoc networks
Correcting delay signal broadcast；
Correcting delay signal receiving unit, with correcting delay signal broadcast unit wireless communication connection, believes during for receiving by school
The clock correcting delay signal of number broadcast unit broadcast；
Unit during school, including main equipment, some node devices and third party device, the main equipment and first are from node
Equipment is connected, and each is connected from node device with third party device；Be connected with main equipment first of the main equipment pair
Enter row clock synchronization from node device；Each is carried out from node device by Last from node device by protocol massages
Time service；Each from node device enters row clock synchronization to the third party device being attached thereto；Each is equal from node device
Function of network exchange is supported, multi stage switch network is formed hand in hand between node device from node device；
Timing system parameter optimization module, the parameters simulation simulative optimization for being calibrated system；
The correcting delay signal broadcast unit includes
Sensor layer, is made up of multiple sensors, big dipper module is mounted in each sensor, for gathering number of targets
According to the data for being collected are exported to information fusion matching layer through noise suppression module, gain amplification module successively；
Information fusion matching layer, for the data that are collected each sensor positioning number of corresponding big dipper module
According to exported after being marked to information processing layer；
Information processing layer, is made up of multiple message processing devices, and each message processing device is upper as corresponding sensor
Level equipment, for processing the information that sensor is uploaded, and is controlled to sensor；
Information fused layer, is made up of multiple intelligence fusion equipment, as the higher level equipment of each message processing device, is used
In the information that each message processing device of reception is reported, and fusion treatment is carried out, form information；
Trunking, is accessed based on link minimum principle and is made up of intelligence fusion equipment, message processing device and sensor
Wireless sensor network, for the relay forwarding of information between each layer.
Preferably, the timing system parameter optimization module includes
Mathematical Models module, for setting up number by Flac3D according to the data of correcting delay signal broadcast unit institute broadcast
Learn model；
Virtual parameter actuator, for driving Parameters variation, pass is set up with each element in Mathematical Models module
After system, parameter can be changed in specified scope, such that it is able to drive analysis method to be carried out for different parameters
Calculate and solve；
Virtual parameter module, for inserted in Mathematical Modeling it is all types of can the corresponding result of direct access or information
The logic unit of target；
Simulation analysis module, the parameter of design variable, design object and design constraint can be decomposed into for being input into, be calculated
Method, and be unit, characteristic and load by |input paramete, algorithm partition, it is applied in the module specified respectively；
Result is fed back to imitative by the parameter or algorithm that the virtual actuator performs the input of simulation analysis module by circulating
True analysis module, the simulation analysis module automatically extracts data and shows to virtual parameter module, the virtual parameter module automatically
Registration evidence.
The main equipment includes MCU units, clock source and a ZigBee ad-hoc network interface units of main equipment；Master sets
Standby MCU units are main control unit, the MCU units of main equipment respectively with clock source and a ZigBee ad-hoc network interface units
Connection.
It is described from node device, including from MCU units, the 2nd ZigBee ad-hoc networks interface unit, of node device
Three ZigBee ad-hoc networks interface units, local clock unit, clock generator and ZigBee ad-hoc network interface units；Clock
The output of generator is connected with the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc network interface units respectively,
2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit with the MCU units from node device
Connection, the input and clock generator phase of local clock unit and ZigBee ad-hoc networks interface unit as clock generator
Even；It is connected with up ZigBee ad-hoc networks interface unit from the MCU units of node device.
Network exchange and data processing, ZigBee ad-hoc networks interface unit, second are realized from the MCU units of node device
ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit are used to realize sync message protocol analysis, number
According to reception and transmission；ZigBee ad-hoc networks interface unit be used to realizing this from node device with upper one from node device or
The communication of main equipment；2nd ZigBee ad-hoc networks interface unit is used to realize originally from node device with next from node device
Communication；3rd ZigBee ad-hoc networks interface unit is used to realize this from the communication of node device and third party device.
Network link layer is used and is based on sound state hybrid MAC protocols according to type of service.
Up ZigBee ad-hoc networks interface unit is connected with upstream plant, carries out data double-way communication, and reception comes from
The sync message information of upstream plant, gives the MCU units from node device after decoding, by the MCU unit controls from node device
Make the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit and up ZigBee ad-hoc networks
Interface unit carries out Absolute Time Synchronization；The ethernet clock of upstream plant is given clock hair by up ether net unit simultaneously
Raw device, is divided into two-way synchronizing clock signals and gives the 2nd ZigBee ad-hoc networks interface unit and the 3rd respectively by clock generator
ZigBee ad-hoc network interface units, carry out Phase synchronization；So far, absolute time is synchronous with time phase realization.
This specific implementation is realized using synchronous two steps of clock in the clock synchronization of equipment room and equipment；Equipment room
Clock synchronizing method be：The equipment room clock synchronization, refer to main equipment with from the clock between node device it is synchronous, from
Node device is synchronous with from the clock between node device：From the clock generator of node device using local clock unit as defeated
Enter clock signal, up ZigBee ad-hoc networks interface unit determines the clock synchronization compliant with precision time protocol from node device itself；Set from node simultaneously
The standby clock synchronization compliant with precision time protocol signal that main equipment is received by up ZigBee ad-hoc networks interface unit, it is measured certainly from node device
Time difference between the clock synchronization compliant with precision time protocol signal that the clock synchronization compliant with precision time protocol and main equipment of body send；Calibration from the PTP of node device itself when
Clock signal is consistent with main equipment clock, reaches clock synchronization；It is described from node device and from the time synchronized between node device
The step of and main equipment with from the synchronous step of the clock between node device be the same.
In no signal, the transmission of the information that can be formed by big dipper module between sensor layer, the north
Bucket module is communicated by short message carries out the transmission of data.
Element is provided with the simulation analysis module：Macroelement is the real object of simulation analysis；Property：
Characteristic is shared attribute information static on some analysis objects；Load：Load analyzes outside shadow in load to be carried in these
Ring factor or condition；Analysis：Analyze is all kinds of specific simulating analysis and appraisal procedure；Result：It is calculated
Data and the form based on data processing, cloud atlas, report；Variable：Design variable is the mark of variable in model；
Target：Design object is eventually for the fine or not or rational index or the result of index for weighing model；
Constraint：Design constraint is the rule that system needs to observe when optimization is considered；OptAlgorithm：Optimization Design
It is all kinds of specific algorithms for optimizing design；OptResult：Optimum results are by optimizing the design variable being calculated most
Excellent value.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. it is a kind of based on zigbee communication and Beidou dual-mode time service wireless timing system, it is characterised in that
Including
The reception antenna being disposed in the outdoor, time signal is by outdoor during for by the UTC standards of gps satellite/big-dipper satellite transmitting
Receive to indoor time signal receiving unit；
Main control unit, electrically connects with the time signal receiving unit, and time signal produces clock school during according to the UTC standards
When signal；
Correcting delay signal broadcast unit, electrically connects with the main control unit, when implementing indoor clock school using ZigBee ad-hoc networks
Signal broadcast；
Correcting delay signal receiving unit, with correcting delay signal broadcast unit wireless communication connection, is sent out for receiving by correcting delay signal
Broadcast the clock correcting delay signal of unit broadcast；
Unit during school, including main equipment, some node devices and third party device, the main equipment and first are from node device
Connection, each is connected from node device with third party device；Be connected with main equipment first of the main equipment pair is from section
Point device enters row clock synchronization；Each is carried out implementation and is awarded from node device by Last from node device by protocol massages
When；Each from node device enters row clock synchronization to the third party device being attached thereto；Each is propped up from node device
Function of network exchange is held, multi stage switch network is formed hand in hand between node device from node device；
Timing system parameter optimization module, the parameters simulation simulative optimization for being calibrated system；
The correcting delay signal broadcast unit includes
Sensor layer, is made up of multiple sensors, and big dipper module is mounted in each sensor, for gathering target data,
The data for being collected are exported to information fusion matching layer through noise suppression module, gain amplification module successively；
Information fusion matching layer, the data for each sensor to be collected are entered with the location data of corresponding big dipper module
Exported after line flag to information processing layer；
Information processing layer, is made up of multiple message processing devices, and each message processing device sets as the higher level of corresponding sensor
It is standby, for processing the information that sensor is uploaded, and sensor is controlled；
Information fused layer, is made up of, as the higher level equipment of each message processing device, for connecing multiple intelligence fusion equipment
The information that each message processing device is reported is received, and carries out fusion treatment, form information；
Trunking, the nothing being made up of intelligence fusion equipment, message processing device and sensor is accessed based on link minimum principle
Line sensor network, for the relay forwarding of information between each layer.
2. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 1, its feature
It is that the timing system parameter optimization module includes
Mathematical Models module, for setting up mathematical modulo by Flac3D according to the data of correcting delay signal broadcast unit institute broadcast
Type；
Virtual parameter actuator, for driving Parameters variation, with Mathematical Models module in each element opening relationships after,
Parameter can be changed in specified scope, be asked such that it is able to drive analysis method to carry out calculating for different parameters
Solution；
Virtual parameter module, for inserted in Mathematical Modeling it is all types of can the corresponding result of direct access or information target
Logic unit；
Simulation analysis module, parameter, the algorithm of design variable, design object and design constraint can be decomposed into for being input into, and
It is unit, characteristic and load by |input paramete, algorithm partition, is applied in the module specified respectively；
Result is fed back to emulation point by the parameter or algorithm that the virtual actuator performs the input of simulation analysis module by circulating
Analysis module, the simulation analysis module automatically extracts data and shows number automatically to virtual parameter module, the virtual parameter module
According to.
3. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 1, its feature
It is that the main equipment includes MCU units, clock source and a ZigBee ad-hoc network interface units of main equipment；Main equipment
MCU units be main control unit, the MCU units of main equipment connect with clock source and a ZigBee ad-hoc networks interface unit respectively
Connect.
4. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 1, its feature
It is, it is described from node device, including from MCU units, the 2nd ZigBee ad-hoc networks interface unit, the 3rd of node device
ZigBee ad-hoc networks interface unit, local clock unit, clock generator and ZigBee ad-hoc network interface units；Clock is sent out
The output of raw device is connected with the 2nd ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc network interface units respectively, the
Two ZigBee ad-hoc networks interface units and the 3rd ZigBee ad-hoc networks interface unit connect with the MCU units from node device
Connect, local clock unit and ZigBee ad-hoc networks interface unit are connected as the input of clock generator with clock generator；
It is connected with up ZigBee ad-hoc networks interface unit from the MCU units of node device.
5. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 4, its feature
It is to realize network exchange and data processing, ZigBee ad-hoc networks interface unit, second from the MCU units of node device
ZigBee ad-hoc networks interface unit and the 3rd ZigBee ad-hoc networks interface unit are used to realize sync message protocol analysis, number
According to reception and transmission；ZigBee ad-hoc networks interface unit be used to realizing this from node device with upper one from node device or
The communication of main equipment；2nd ZigBee ad-hoc networks interface unit is used to realize originally from node device with next from node device
Communication；3rd ZigBee ad-hoc networks interface unit is used to realize this from the communication of node device and third party device.
6. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 1, its feature
It is that network link layer is used and is based on sound state hybrid MAC protocols according to type of service.
7. a kind of wireless timing system based on zigbee communications and Beidou dual-mode time service as claimed in claim 4, its feature
It is that up ZigBee ad-hoc networks interface unit is connected with upstream plant, carries out data double-way communication, and receive from up
The sync message information of equipment, gives the MCU units from node device after decoding, by from the MCU units of node device control the
Two ZigBee ad-hoc networks interface units and the 3rd ZigBee ad-hoc networks interface unit and up ZigBee ad-hoc networks interface
Unit carries out Absolute Time Synchronization；The ethernet clock of upstream plant is given clock generator by up ether net unit simultaneously,
Two-way synchronizing clock signals are divided into by clock generator and give the 2nd ZigBee ad-hoc networks interface unit and the 3rd respectively
ZigBee ad-hoc network interface units, carry out Phase synchronization；So far, absolute time is synchronous with time phase realization.
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| CN113099466A (en) * | 2020-01-09 | 2021-07-09 | 大唐移动通信设备有限公司 | Time difference detection method and device |
| CN113821076A (en) * | 2021-10-11 | 2021-12-21 | 上海航天计算机技术研究所 | Virtual simulation system and synchronization method based on virtual clock |
| CN113821076B (en) * | 2021-10-11 | 2023-10-27 | 上海航天计算机技术研究所 | Virtual simulation system and synchronization method based on virtual clock |
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