CN109143939A - A kind of wireless transmitting system - Google Patents
A kind of wireless transmitting system Download PDFInfo
- Publication number
- CN109143939A CN109143939A CN201811194268.8A CN201811194268A CN109143939A CN 109143939 A CN109143939 A CN 109143939A CN 201811194268 A CN201811194268 A CN 201811194268A CN 109143939 A CN109143939 A CN 109143939A
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- Prior art keywords
- signal
- interface
- lora
- controller
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The present invention relates to a kind of wireless transmitting systems, the system includes building control device, at least one signal sending end, at least one signal receiving end and controller, by installing at least one signal sending end and at least one signal receiving end additional between building control device and controller, at least one signal sending end and at least one signal receiving end carry out the conversion between interface control signal and LoRa signal, it realizes and the transmission of the interface control signal of building control device and controller is converted into the transmission of LoRa signal, by using LoRa technology, eliminate cumbersome wiring process, reduce power consumption, improve the received sensitivity of signal, increase the capacity of building control system, improve the stability of building control system operation.
Description
Technical field
The present invention relates to radio transmission technical fields, and in particular to a kind of wireless transmitting system.
Background technique
With popularizing for wireless network, it is convenient, fast that more and more users enjoy wireless transmission bring.And in building
In space control system, DDC controller (Direct Digital Control, direct data control) and lighting system, air-conditioning system
Wired mode is generally taken in the connection of the equipment rooms such as system and ventilating system.Wherein, construction process specifically include that pendulum position, scribing line,
Drilling, fixed, wiring and installation, drilling and wiring and etc. it is great in constructing amount, electric current and voltage is not easily in circuit system
Stablize, power loss is big, and signal reception is easy to happen delay, if there is line fault, is difficult to judge position, Measuring error is difficult
Deng.
Summary of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of wireless transmitting systems.It realizes
The wireless transmission communication function of LoRa (Long Range Radio) signal, solution are based between building control device and controller
Wired connection of having determined bring is great in constructing amount, circuit system is unstable, the low and line fault point that receives signal sensitivity is difficult surveys etc.
Problem.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of wireless transmitting system, the system are connected to building
Space controls between equipment and controller, the interface control signal for being exported building control device by least one signal sending end
LoRa signal is converted to, LoRa signal is converted to by interface control signal by least one signal receiving end and is transferred to control
Device.
The invention adopts the above technical scheme, installs the reception of at least one signal additional between building control device and controller
End and at least one signal sending end realize the wireless communication function based on LoRa signal, exempt the tedious steps of wiring, apply
LoRa signal is communicated, and power consumption is reduced, and improves signal receiving sensitivity, is increased the capacity of building control system, is mentioned
The high stability of building control system operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of wireless transmitting system provided in an embodiment of the present invention；
Fig. 2 is a kind of framework map for the wireless transmitting system being applicable in the embodiment of the present invention；
Fig. 3 is a kind of internal structure chart for the signal sending end being applicable in the embodiment of the present invention；
Fig. 4 is a kind of internal structure chart for the signal receiving end being applicable in the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment
Fig. 1 is the structural schematic diagram of one of embodiment of the present invention wireless transmitting system, and the present embodiment is applicable to building
The case where signal transmission is carried out between space equipment and controller.With reference to Fig. 1, which be can specifically include: building control device
110, at least one signal sending end 120, at least one signal receiving end 130 and controller 140, in which:
At least one signal sending end 120 is connected with building control device 110, for receiving building control device 110
Interface control signal is converted to LoRa signal, and sends LoRa signal by the interface control signal of output；At least one signal hair
Sending end 120 and at least one signal receiving end 130 pass through the progress signal transmission of LoRa network；At least one signal receiving end 130
It is connected with controller 140, the LoRa signal for will receive is converted to interface control signal, and interface control signal is passed
It is defeated to arrive controller 140；Controller 140 is for being analyzed and processed interface control signal.
Specifically, building control device 110 refers to lighting system in intelligent building, air-conditioning in the wireless transmitting system
The equipment such as system and ventilating system, such as may include distribution box, lighting controller, flow control valve, liquid level sensor, He Shui
Temperature sensor etc..It wherein enumerates liquid level sensor and water temperature sensor illustrates, liquid level sensor is for measuring liquid level letter
Breath, water temperature sensor is for measuring water temperature information.Building control device 110 is shown the external information perceived variation in real time
Show and store, and external information variation is transferred at least one signal sending end 120.At this point, external information variation is converted to
Interface control signal, at least one 120 receiving interface of signal sending end control signal, and to interface control signal according to LoRa tune
Technology processed carries out the adjustment such as wave band and frequency, and interface control signal is converted to LoRa signal.LoRa signal passes through LoRa network
It is transferred at least one signal receiving end 130, at least one signal receiving end 130 is by the LoRa signal received according to LoRa tune
The inverse process of technology processed is adjusted, and LoRa signal is converted to interface control signal, at least one signal receiving end 130 will connect
Mouth control signal is transferred to controller 140, and controller 140 is again analyzed and processed interface control signal, executes various logic
Control function, and it is transmitted to management system, management system can carry out unified monitoring to information, and carry out information according to setup parameter
It studies and judges, anticipation trend, assigning adjustment instruction makes entire building control system stable operation.
Next be illustrated to LoRa network transmission technology: LoRa full name " Long Range Radio ", is a kind of base
In the low-power consumption long-distance radio communication technology of spread spectrum, it is mainly directed towards Internet of Things, is applied to battery powered wireless local area
Net and WAN equipment.LoRa is due to its lower power consumption levels, sensitive receiving degree, large capacity and stable characteristic and broadness
Coverage distance, Internet of Things development in by application.
In the embodiment of the present invention, by the conversion between interface control signal and LoRa signal, former Transmission system is changed
The wireline interface mode generally used realizes between building control device 110 and controller 140 based on the wireless of LoRa signal
Communication function reduces power consumption using the communication transfer mode based on LoRa signal, improves the received sensitivity of signal, adds
The big capacity of entire building control system, improves the stability of building control system operation.Meanwhile the communication wirelessly disposed
Mode can effectively increase the distance of deployed with devices, so that the deployment range of building control device expands, increase information collection
Point and accuracy.
Further, at least one signal sending end 120 includes first interface module 121, the first micro-control unit
(Micro Controller Unit, MCU) the 122, first radio-frequency module 123 and the first power module 124；First interface module
121 for receiving the interface control signal of the sending of building control device 110；First radio-frequency module 123 is for believing Interface Controller
Number LoRa signal is converted to, and sends LoRa signal.
It is detailed, at least one signal sending end 120, it is powered by the first power module 124, building control first
110 Output Interface Control signal of control equipment, first interface module 121 receive this interface control signal, abide by Modbus specification (again
Name Modbus protocol, Modbus communications protocol).Modbus communications protocol is that one kind is widely used to current industry control
The universal communication agreement in field processed.By this agreement, between controller or controller via network (such as Ethernet) can and its
It is communicated between its equipment.Then the first micro-control unit 122 to the received interface control signal of first interface module 121 into
Row processing, last first radio-frequency module 123 believe Interface Controller according to the wave band of LoRa modulation technique adjustment signal and frequency etc.
Number LoRa signal is converted to, finally sends LoRa signal.
Further, at least one signal receiving end 130 include second interface module 131, the second micro-control unit 132,
Second radio-frequency module 133 and second power supply module 134；Second radio-frequency module 133 is for being converted to the LoRa signal received
Interface control signal；Second interface module 131 is used to interface control signal being transferred to controller 140.
Specifically, being powered at least one signal receiving end 130 by second power supply module 134.First second penetrates
Frequency module 133 receives LoRa signal, and LoRa signal is converted to interface control signal according to the inverse process of LoRa modulation technique,
Then the second micro-control unit 122 handles interface control signal, 131 Output Interface Control of the second last interface module letter
Number, and abide by Bacnet specification (also known as A Data Communication Protocol for Building Automation
And Control Networks, referred to as " Bacnet agreement " building automation and coutrol Data Communication in Computer Networks agreement).Bacnet agreement
Be for designed by heating, ventilation, air-conditioning and refrigeration control equipment, while also for other building control systems (such as illumination,
The systems such as security and fire-fighting) one basic principle of integrated offer.
Further, at least one signal sending end 120 is connected with building control device 110.
Specifically, at least one signal sending end 120 and building control device 110 are carried out by first interface module 121
Connection, interface control signal abide by Modbus specification.
Further, at least one signal receiving end 130 is connected with controller 140.
Specifically, at least one signal receiving end 130 is attached with controller 140 by second interface module 131, connect
Mouth control signal abides by Bacnet specification.
Further, at least one signal sending end 120 is connected by LoRa signal with first antenna, at least one letter
Number receiving end 130 is connected by LoRa signal and the second antenna.
It is detailed, believe between at least one signal sending end 120 and at least one signal receiving end 130 using based on LoRa
Number transmission wireless communication mode, in actual application process, LoRa signal is needed as a kind of radio electromagnetsm wave signal
Antenna is received and is emitted.Therefore, the first antenna in the embodiment of the present invention is for receiving at least one signal sending end 120
The LoRa signal of transmission, first antenna emit LoRa signal again；Second antenna is used to receive the LoRa signal of first antenna output,
And it is emitted at least one signal receiving end 130.
Further, interface control signal includes RS485 interface signal.
Specifically, interface control signal be it is a variety of, can be depending on the specific hardware interface of equipment, such as RS485 interface
The signal of transmission is RS485 interface signal, and the signal of RS422 interface transmission is RS422 interface signal.
Further, first interface module 121 includes RS485 interface, and second interface module 131 includes RS485 interface.
Detailed, according to particular hardware interface, first interface module 121 includes RS485 interface and RS422 interface, and second
Interface module 131 includes RS485 interface and RS422 interface.
Further, the first micro-control unit 122 includes STM32 chip, and the second micro-control unit 132 includes STM32 core
Piece.
Detailed, there are many chips that the first micro-control unit 122 uses, such as STM32 chip, the second micro-control unit
There are many 132 chips used, such as STM32 chip.
Further, controller 140 includes DDC controller.
Detailed, there are many 140 types of controller, and one of which is DDC controller.
In addition in addition, the first radio-frequency module 123 includes model SX1278 radio-frequency module, the second radio-frequency module 133 includes
Model SX1278 radio-frequency module.
In a specific example, Fig. 2 is a kind of framework map of wireless transmitting system, building control device packet in Fig. 2
Sensor is included, the interface control signal exported by building control device or sensor, and it is transferred to signal sending end.Because practical
Building control device and sensor more than one in situation, so signal sending end is at least one, corresponding signal is received
End is more than one, and Fig. 2 is only used to illustrate, and does not form specific restriction to the quantity of signal sending end and signal receiving end.Letter
By LoRa network transmission LoRa signal number between transmitting terminal and signal receiving end, DDC controller is connected with signal receiving end,
It handles and uploads interface control signal to management system.
Illustratively, Fig. 3 is a kind of internal structure chart of signal sending end, and the signal that first interface module 121 receives is abided by
Modbus specification is kept, the received interface control signal of first interface module 121 is transferred to the first micro-control unit 122.First is micro-
Control unit 122 is to being transferred to the first radio-frequency module 123 after Interface Controller signal processing, the first radio-frequency module 123 is by interface control
Signal processed is converted to LoRa signal, and sends.It receives LoRa signal by first antenna to be retransmited, the first power module
124 pairs of signal sending ends are powered.
For example, Fig. 4 is a kind of internal structure chart of signal receiving end, the second radio-frequency module 133 receives the transmission of the second antenna
LoRa signal, LoRa signal is converted into interface control signal, and interface control signal is transferred to the second micro-control unit
132.Second micro-control unit 132 is transferred to second interface module 131 to Interface Controller signal processing.Second interface module
Interface control signal is transferred to DDC controller again by 131, abides by Bacnet specification, second power supply module 134 is to signal receiving end
It is powered.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for data wirelessly to be realized with logic function
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of wireless transmitting system, which is characterized in that including building control device, at least one signal sending end, at least one
A signal receiving end and controller, in which:
At least one described signal sending end is connected with the building control device, defeated for receiving the building control device
The interface control signal is converted to LoRa signal by interface control signal out, and sends the LoRa signal；
At least one described signal sending end and at least one described signal receiving end pass through the progress signal transmission of LoRa network；
At least one described signal receiving end is connected with the controller, for being converted to the LoRa signal received
The interface control signal, and the interface control signal is transferred to the controller；
The controller is for being analyzed and processed the interface control signal.
2. system according to claim 1, which is characterized in that at least one described signal sending end includes first interface mould
Block, the first micro-control unit, the first radio-frequency module and the first power module, in which:
The first interface module is used to receive the interface control signal of the building control device output；
First radio-frequency module is used to the interface control signal being converted to the LoRa signal, and sends the LoRa letter
Number.
3. system according to claim 1, which is characterized in that at least one described signal receiving end includes second interface mould
Block, the second micro-control unit, the second radio-frequency module and second power supply module, in which:
Second radio-frequency module is used to the LoRa signal received being converted to the interface control signal；
The second interface module is used to the interface control signal being transferred to the controller.
4. system according to claim 1, which is characterized in that at least one described signal sending end and the building control
Equipment is connected.
5. system according to claim 1, which is characterized in that at least one described signal receiving end and the controller phase
Connection.
6. system according to claim 1, which is characterized in that at least one described signal sending end is believed by the LoRa
Number it is connected with first antenna, at least one described signal receiving end is connected by the LoRa signal and the second antenna.
7. system according to claim 1-3, which is characterized in that the interface control signal includes that RS485 connects
Message number.
8. system according to claim 2 or 3, which is characterized in that the first interface module includes RS485 interface, institute
Stating second interface module includes RS485 interface.
9. system according to claim 2 or 3, which is characterized in that first micro-control unit includes model STM32
Chip, second micro-control unit includes the chip of model STM32.
10. system according to claim 1, which is characterized in that the controller includes DDC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194268.8A CN109143939A (en) | 2018-10-12 | 2018-10-12 | A kind of wireless transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194268.8A CN109143939A (en) | 2018-10-12 | 2018-10-12 | A kind of wireless transmitting system |
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| Publication Number | Publication Date |
|---|---|
| CN109143939A true CN109143939A (en) | 2019-01-04 |
Family
ID=64811728
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811194268.8A Pending CN109143939A (en) | 2018-10-12 | 2018-10-12 | A kind of wireless transmitting system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793507A (en) * | 2015-04-15 | 2015-07-22 | 安徽中程智能科技有限公司 | Building intelligent auto-control system DDC (direct digital control) and auto-control method |
| CN207249467U (en) * | 2017-07-14 | 2018-04-17 | 北京理工大学珠海学院 | A kind of Dormitory management system |
| CN108093081A (en) * | 2018-01-10 | 2018-05-29 | 上海时链节能科技有限公司 | Building operation data collecting system and method based on the Internet of Things LoRa communication technologys |
| CN207817949U (en) * | 2018-02-05 | 2018-09-04 | 广东力田科技股份有限公司 | A kind of electricity consumption data acquisition wireless communication device based on LoRa |
| CN208903103U (en) * | 2018-10-12 | 2019-05-24 | 北京时代凌宇科技股份有限公司 | A kind of wireless transmitting system |
-
2018
- 2018-10-12 CN CN201811194268.8A patent/CN109143939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793507A (en) * | 2015-04-15 | 2015-07-22 | 安徽中程智能科技有限公司 | Building intelligent auto-control system DDC (direct digital control) and auto-control method |
| CN207249467U (en) * | 2017-07-14 | 2018-04-17 | 北京理工大学珠海学院 | A kind of Dormitory management system |
| CN108093081A (en) * | 2018-01-10 | 2018-05-29 | 上海时链节能科技有限公司 | Building operation data collecting system and method based on the Internet of Things LoRa communication technologys |
| CN207817949U (en) * | 2018-02-05 | 2018-09-04 | 广东力田科技股份有限公司 | A kind of electricity consumption data acquisition wireless communication device based on LoRa |
| CN208903103U (en) * | 2018-10-12 | 2019-05-24 | 北京时代凌宇科技股份有限公司 | A kind of wireless transmitting system |
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