CN207150588U - A kind of adjustable low frequency signal emitting-receiving system of scope - Google Patents
A kind of adjustable low frequency signal emitting-receiving system of scope Download PDFInfo
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- CN207150588U CN207150588U CN201721209378.8U CN201721209378U CN207150588U CN 207150588 U CN207150588 U CN 207150588U CN 201721209378 U CN201721209378 U CN 201721209378U CN 207150588 U CN207150588 U CN 207150588U
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- transmitting terminal
- signal
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- receiving
- low frequency
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Abstract
A kind of adjustable low frequency signal emitting-receiving system of scope, including：Transmitter unit, receiving unit, described transmitter unit includes transmitting terminal main control module, the clock being connected with transmitting terminal main control unit, transmitting terminal toggle switch/variable resistance, transmitting terminal communication module, transmitting terminal low-frequency antenna drive module, the low frequencies antenna being connected with transmitting terminal low-frequency antenna drive module, and the transmitting terminal power module for transmitter unit power supply, it is adjusted by the regulation to transmitting terminal toggle switch/variable resistance come the carrier frequency of the carrier signal sent to transmitter unit, reach the purpose of Regulate signal footprint size, the convenient and reliable signal cover that have adjusted low-frequency signal emitter of the utility model, cost is saved simultaneously.
Description
Technical field
The technical field of communication interface is the utility model is related to, specifically, is related to a kind of adjustable low frequency signal of scope
Emitting-receiving system.
Background technology
Electromagnetic wave be by vibrate in the same direction and mutually perpendicular electric field and magnetic field in space in the form of ripple move, its propagate
The plane that direction is formed perpendicular to electric field and magnetic field, carries out the transmission of energy.Electromagnetic wave is according to frequency categorization, from low frequency to height
Frequently, radio wave, microwave, infrared ray are included, it is seen that light, ultraviolet etc..And low-frequency electromagnetic wave refers to frequency in 30-
Between 300KHz, battery ripple of the wavelength between 10km-1Km.
Low-frequency electromagnetic wave can be used for alignment system because it has good penetrability to media such as metal, buildings
In.Field with relatively more successful also comparative maturity mainly has in some special screnes such as prison, hospital, is sent out using low frequency signal
Emitter produces the electromagnetic signal of certain coverage, but has the people or other carrier for wearing receiving device, into the monitored space
Domain, or leave the monitor area and will be monitored judgement in real time.According to different scene demands, it will there is different responses
Logic, such as alarm, lamplight pointing, so as to carry out manual intervention or other related treatment measures etc..
In currently existing scheme design, adopted mostly for electromagnetic signal coverage regulation caused by low-frequency signal emitter
With the operating voltage of regulation emitter antenna, the mode of pulsewidth or electric current realizes the control of signal cover.Actual
Using getting off, by these modes, it can not realize that monitoring range is reliably adjusted well, on the contrary to the cost of system, work(
Consumption etc. has higher requirement.
The content of the invention
In order to overcome the above-mentioned problems in the prior art, it is adjustable low that the utility model provides a kind of scope
Frequency signal emitting-receiving system, convenient and reliable have adjusted the signal cover of low-frequency signal emitter, at the same saved into
This, also optimizes system power dissipation.
A kind of adjustable low frequency signal emitting-receiving system of scope, including：
Transmitter unit, it is used in the range of setting to surrounding launch low frequency signal and carries out data friendship with receiving unit
Mutually；
Receiving unit, it is used to receive the low frequency signal that transmitter unit is sent, and by corresponding demodulation module, obtains
The useful information in signal is got, and data interaction is carried out with transmitter unit；
Described transmitter unit includes transmitting terminal main control module, and the clock being connected with transmitting terminal main control unit, toggle switch/
Adjustable resistor, transmitting terminal communication module, transmitting terminal low-frequency antenna drive module, are connected with transmitting terminal low-frequency antenna drive module
Low frequencies antenna, and for transmitter unit power supply transmitting terminal power module, by toggle switch/adjustable resistor
Regulation is adjusted come the carrier frequency of the carrier signal sent to transmitter unit, reaches the mesh of Regulate signal footprint size
's.
Preferably, the demodulation that described receiving unit includes receiving terminal main control module, is connected with receiving terminal main control module
Module, receiving terminal communication module, low frequency reception antenna, and the receiving terminal power module for receiving unit power supply.
Preferably, described transmitting terminal main control module controls low frequencies day by transmitting terminal low-frequency antenna drive module
Line launches low frequency signal to surrounding；Described low frequency reception antenna is transferred to receiving terminal main control module after receiving the signal, connects
Receiving end main control module obtains the useful information in the signal using demodulation module, and is sent information by receiving terminal communication module
Give transmitting terminal communication module；Described transmitting terminal communication module sends information to transmitting terminal main control module.
Preferably, described low frequency signal includes carrier signal, modulated signal and control signal, described carrier signal
Its carrier frequency can be adjusted by toggle switch/adjustable resistor, reach the purpose of Regulate signal coverage, described modulation
Signal is used for the reliable recognition for ensureing signal, and comprising lead code, identification code and identity information, described control signal is used for hair
Penetrate end low-frequency antenna drive module and carry out various actions control.
Preferably, described receiving terminal communication module and transmitting terminal communication module are led to using 2.4G or 433M signals
Letter.
Compared with the prior art, the utility model has advantages below：
（1）Convenient and reliable transmitting antenna low frequency signal coverage is adjusted；
（2）Save system operation cost；
（3）Regulative mode variation, meets all kinds of demands.
Brief description of the drawings
Fig. 1 is the module frame chart of transmitter unit in embodiment 1；
Fig. 2 is the module frame chart of receiving unit in embodiment 1；
Fig. 3 is transmitting terminal low-frequency antenna drive module block diagram in embodiment 1.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
It should be appreciated that embodiment be only the utility model is explained and and it is non-limiting.
Embodiment 1
A kind of adjustable low frequency signal emitting-receiving system of scope is present embodiments provided, including：
Transmitter unit, it is used in the range of setting to surrounding launch low frequency signal and carries out data friendship with receiving unit
Mutually；
Receiving unit, it is used to receive the low frequency signal that transmitter unit is sent, and by corresponding demodulation module, obtains
The useful information in signal is got, and data interaction is carried out with transmitter unit；
As shown in figure 1, described transmitter unit includes transmitting terminal main control module, be connected with transmitting terminal main control unit when
Clock, toggle switch/adjustable resistor, transmitting terminal communication module, transmitting terminal low-frequency antenna drive module, with transmitting terminal low-frequency antenna
Drive module connection low frequencies antenna, and for transmitter unit power supply transmitting terminal power module, by toggle switch/
The regulation of adjustable resistor is adjusted come the carrier frequency of the carrier signal sent to transmitter unit, reaches Regulate signal covering
The purpose of range size.
Wherein, toggle switch/adjustable resistor can also be replaced using third party device, passes through the communication mould of the equipment
Block is controlled to be adjusted to adjust the carrier frequency of the carrier signal sent to transmitter unit.
As shown in Fig. 2 the demodulation that described receiving unit includes receiving terminal main control module, is connected with receiving terminal main control module
Module, receiving terminal communication module, low frequency reception antenna, and the receiving terminal power module for receiving unit power supply.
The workflow of the system is as follows：
Described transmitting terminal main control module controls low frequencies antenna to surrounding by transmitting terminal low-frequency antenna drive module
Launch low frequency signal；Described low frequency reception antenna is transferred to receiving terminal main control module, receiving terminal master control after receiving the signal
Module obtains the useful information in the signal using demodulation module, and sends information to transmitting terminal by receiving terminal communication module
Communication module；Described transmitting terminal communication module sends information to transmitting terminal main control module.
Wherein, described low frequency signal includes carrier signal, modulated signal and control signal, and described carrier signal can lead to
Cross toggle switch/adjustable resistor and adjust its carrier frequency, reach the purpose of Regulate signal coverage, described modulated signal
For ensureing the reliable recognition of signal, comprising lead code, identification code and identity information, described control signal is used for transmitting terminal
Low-frequency antenna drive module carries out various actions control.
Wherein, described receiving terminal communication module and transmitting terminal communication module are communicated using 2.4G or 433M signals.
As shown in figure 3, transmitting terminal low-frequency antenna drive module transmitting terminal main control module is provided carrier signal, modulation letter
Number and control signal sent out by low frequencies antenna, low frequencies antenna is at least one, when use more low frequencies
During antenna, various multiplexing functions can be realized according to the demand of reality.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (5)
- A kind of 1. adjustable low frequency signal emitting-receiving system of scope, it is characterised in that including：Transmitter unit, it is used in the range of setting to surrounding launch low frequency signal and carries out data interaction with receiving unit；Receiving unit, it is used to receive the low frequency signal that transmitter unit is sent, and by corresponding demodulation module, gets Useful information in signal, and carry out data interaction with transmitter unit；Described transmitter unit includes transmitting terminal main control module, and the clock being connected with transmitting terminal main control unit, toggle switch/variable Resistor, transmitting terminal communication module, transmitting terminal low-frequency antenna drive module, it is connected with transmitting terminal low-frequency antenna drive module low Frequency transmitting antenna, and for transmitter unit power supply transmitting terminal power module, by toggle switch/variable resistance to transmitting The carrier frequency for the carrier signal that unit is sent is adjusted, and reaches the purpose of Regulate signal footprint size.
- A kind of 2. adjustable low frequency signal emitting-receiving system of scope according to claim 1, it is characterised in that：Described Receiving unit includes receiving terminal main control module, the demodulation module being connected with receiving terminal main control module, receiving terminal communication module, low frequency Reception antenna, and the receiving terminal power module for receiving unit power supply.
- A kind of 3. adjustable low frequency signal emitting-receiving system of scope according to claim 1 or 2, it is characterised in that：Institute The transmitting terminal main control module stated controls low frequencies antenna to launch low frequency letter to surrounding by transmitting terminal low-frequency antenna drive module Number；Described low frequency reception antenna is transferred to receiving terminal main control module after receiving the signal, and receiving terminal main control module utilizes solution Mode transfer block obtains the useful information in the signal, and sends information to transmitting terminal communication module by receiving terminal communication module； Described transmitting terminal communication module sends information to transmitting terminal main control module.
- A kind of 4. adjustable low frequency signal emitting-receiving system of scope according to claim 3, it is characterised in that：Described Low frequency signal includes carrier signal, modulated signal and control signal, and described carrier signal can pass through toggle switch/variable resistor Device adjusts its carrier frequency, reaches the purpose of Regulate signal coverage, and described modulated signal is used to ensure the reliable of signal Identification, comprising lead code, identification code and identity information, described control signal is used to enter transmitting terminal low-frequency antenna drive module Row various actions control.
- A kind of 5. adjustable low frequency signal emitting-receiving system of scope according to claim 3, it is characterised in that：Described Receiving terminal communication module and transmitting terminal communication module are communicated using 2.4G or 433M signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209378.8U CN207150588U (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable low frequency signal emitting-receiving system of scope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209378.8U CN207150588U (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable low frequency signal emitting-receiving system of scope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207150588U true CN207150588U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721209378.8U Active CN207150588U (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable low frequency signal emitting-receiving system of scope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547049A (en) * | 2017-09-20 | 2019-03-29 | 杭州米越科技有限公司 | A kind of adjustable low frequency signal emitting-receiving system of range and its adjusting method |
-
2017
- 2017-09-20 CN CN201721209378.8U patent/CN207150588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547049A (en) * | 2017-09-20 | 2019-03-29 | 杭州米越科技有限公司 | A kind of adjustable low frequency signal emitting-receiving system of range and its adjusting method |
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