CN106441546A - Wireless vibration sensor based on frequency hopping technology and detection method thereof - Google Patents
Wireless vibration sensor based on frequency hopping technology and detection method thereof Download PDFInfo
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- CN106441546A CN106441546A CN201610786586.8A CN201610786586A CN106441546A CN 106441546 A CN106441546 A CN 106441546A CN 201610786586 A CN201610786586 A CN 201610786586A CN 106441546 A CN106441546 A CN 106441546A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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Abstract
The invention discloses a wireless vibration sensor based on a frequency hopping technology and a detection method thereof. The wireless vibration sensor includes a vibration acquisition module which is intended for acquiring acceleration speed, speed and displacement data, a temperature acquisition module which is intended for acquiring temperature data, a power supply module which is intended for powering the wireless vibration sensor, a wireless communication module which is intended for transmitting signal data, and a microprocessor which is intended for processing data. The vibration acquisition module, the temperature acquisition module, the power supply module, and the wireless communication module are in separate electrical connection to the microprocessor. The microprocessor is fixedly provided with at least two channel frequencies therein. The at least two channel frequencies include one default channel. The wireless communication module includes a radio frequency transmitting and receiving chip.
Description
Technical field
A kind of the present invention relates to sensor field, more particularly, it relates to wireless vibration sensor based on frequency hopping
And its detection method.
Background technology
At present in the application of Condition Detection and fault diagnosis field, mainly or networking is carried out using wired mode,
There is more problem in this kind of scheme:As difficult wiring, greatly, irremovable, cable is easily destroyed, and the joint time is long for diversion project amount
Easily loose contact etc..The appearance of wireless vibration sensor is not only effective supplement of cable technology, and extension facility is monitored
Scope, improves level monitoring, and reducing system group network cost has critically important effect.But work in multiple wireless vibration sensors simultaneously
When, multiple sensor simultaneous transmission data can cause wireless signal to interfere it is impossible to correct demodulating data, causes communication failure
Rate is higher, and valid data transmission accuracy and promptness be not high.
Content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, provides one kind to be based on frequency hopping skill
The wireless vibration sensor of art.
The technical solution adopted for the present invention to solve the technical problems is:Construct a kind of wireless vibration based on frequency hopping
Sensor, this wireless vibration sensor includes the vibration acquisition module for gathering acceleration, speed, displacement data, is used for adopting
The temperature collect module of collection temperature data, for the power module for this wireless vibration sensor power, for sending collection letter
The wireless communication module of number, and for carrying out the microprocessor of data processing, this vibration acquisition module, temperature acquisition mould
Block, power module, wireless communication module are electrically connected with this microprocessor respectively, are fixed with least two channels in this microprocessor
Frequency, comprises a default channel in this at least two channel frequency, this wireless communication module includes rf chip.
Of the present invention based in the wireless vibration sensor of frequency hopping, this microprocessor includes working as reading
The read module of the RSSI value of front channel, whether exceed the comparison module of predetermined upper limit value, be used for for relatively current RSSI value
RSSI value exceedes the handover module controlling switching channel during predetermined upper limit value in this prior.
Of the present invention based in the wireless vibration sensor of frequency hopping, this wireless communication module is used for deserving
When front RSSI value is less than predetermined upper limit value, controls and send data using present channel.
Another technical scheme that the present invention solves that its technical problem adopted is:A kind of wireless vibration based on frequency hopping
The detection method of sensor, comprises the following steps:
Step S101, vibration acquisition module collection acceleration, speed, displacement data;
Step S102, the temperature of temperature collect module collecting temperature data;
Step S103, microprocessor receives the first data of vibration acquisition module collection and the second of temperature sensor collection
Data;
Step S104, microprocessor select communication channel and control by wireless communication module will the first data and second number
According to being sent out.
In detection method of the present invention, this step S104 specifically includes:
Step S1041, the RSSI value of microcomputer reads default channel;
Step S1042, whether the RSSI value comparing this default channel exceedes predetermined upper limit value;
Step S1043, if the RSSI value of this default channel is less than predetermined upper limit value, controls and sends the using default channel
One data and the second data;
Step S1044, if the RSSI value of this default channel is greater than or equal to predetermined upper limit value, controls and switches to next letter
Road, detects subsequent channels RSSI value, and the RSSI value in present channel is less than predetermined upper limit value, then control present channel to send the
One data and the second data.
Implement the wireless vibration sensor based on frequency hopping of the present invention, have the advantages that:Using the present invention
Wireless vibration sensor based on frequency hopping when, vibration acquisition module collection acceleration, speed, displacement data, temperature is adopted
The temperature of collection module collecting temperature data, microprocessor receives the first data of vibration acquisition module collection and temperature sensor is adopted
Second data of collection, microprocessor select communication channel and control by wireless communication module by the first data and the second data to
Outer transmission.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structured flowchart based on the wireless vibration sensor of frequency hopping for the present invention;
Fig. 2 is the schematic flow sheet based on the wireless vibration sensor detecting method of frequency hopping for the present invention;
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
As shown in figure 1, in the present invention based in the wireless vibration sensor first embodiment of frequency hopping, this wirelessly shakes
Dynamic sensor includes the vibration acquisition module for gathering acceleration, speed, displacement data, for the temperature of collecting temperature data
Acquisition module, for the power module for this wireless vibration sensor power, for sending the radio communication of collection signal data
Module, and for carrying out the microprocessor of data processing, this vibration acquisition module, temperature collect module, power module, wireless
Communication module is electrically connected with this microprocessor respectively, is fixed with least two channel frequencys in this microprocessor, and this at least two
A default channel is comprised, this wireless communication module includes rf chip in channel frequency.
During using the wireless vibration sensor based on frequency hopping for the present invention, vibration acquisition module collection acceleration, speed
Degree, displacement data, the temperature of temperature collect module collecting temperature data, microprocessor receives the first of vibration acquisition module collection
Data and the second data of temperature sensor collection, microprocessor selects communication channel and controls the by wireless communication module
One data and the second data are sent out.
Specifically, this microprocessor includes the read module of the RSSI value for reading present channel, for relatively more current
Whether RSSI value exceedes the comparison module of predetermined upper limit value, exceedes control switching during predetermined upper limit value for RSSI value in this prior
The handover module of channel.When this wireless communication module is less than predetermined upper limit value for RSSI value in this prior, control using current
Channel sends data.
Embodiment two
As shown in Fig. 2 in the present invention second embodiment based on the wireless vibration sensor detecting method of frequency hopping
In, this data detection method comprises the following steps:
Step S101, vibration acquisition module collection acceleration, speed, displacement data;
Step S102, the temperature of temperature collect module collecting temperature data;
Step S103, microprocessor receives the first data of vibration acquisition module collection and the second of temperature sensor collection
Data;
Step S104, microprocessor select communication channel and control by wireless communication module will the first data and second number
According to being sent out.
During the detection method of the enforcement present invention, vibration acquisition module collection acceleration, speed, displacement data, temperature acquisition
The temperature of module collecting temperature data, microprocessor receives the first data and the temperature sensor collection of vibration acquisition module collection
The second data, microprocessor selects communication channel and control will be outside to the first data and the second data by wireless communication module
Send.
Further, this step S104 specifically includes:
Step S1041, the RSSI value of microcomputer reads default channel;
Step S1042, whether the RSSI value comparing this default channel exceedes predetermined upper limit value;
Step S1043, if the RSSI value of this default channel is less than predetermined upper limit value, controls and sends the using default channel
One data and the second data;
Step S1044, if the RSSI value of this default channel is greater than or equal to predetermined upper limit value, controls and switches to next letter
Road, detects subsequent channels RSSI value, and the RSSI value in present channel is less than predetermined upper limit value, then control present channel to send the
One data and the second data.
The foregoing is only embodiments of the invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (5)
1. a kind of wireless vibration sensor based on frequency hopping it is characterised in that described wireless vibration sensor include for
Collection acceleration, speed, the vibration acquisition module of displacement data, for the temperature collect module of collecting temperature data, for for
The power module of described wireless vibration sensor power, for sending the wireless communication module of collection signal data, and is used for
Carry out the microprocessor of data processing, described vibration acquisition module, temperature collect module, power module, wireless communication module divide
Do not electrically connect with described microprocessor, in described microprocessor, be fixed with least two channel frequencys, described at least two channels
A default channel is comprised, described wireless communication module includes rf chip in frequency.
2. the wireless vibration sensor based on frequency hopping according to claim 1 is it is characterised in that described microprocessor
Whether exceed predetermined upper limit value including the read module of the RSSI value for reading present channel, for relatively current RSSI value
Comparison module, the handover module for controlling switching channel when described current RSSI value exceedes predetermined upper limit value.
3. the wireless vibration sensor based on frequency hopping according to claim 2 is it is characterised in that described radio communication
Module is used for, when described current RSSI value is less than predetermined upper limit value, controlling and sending data using present channel.
4. a kind of detection method of the wireless vibration sensor based on frequency hopping is it is characterised in that comprise the following steps:
Step S101, vibration acquisition module collection acceleration, speed, displacement data;
Step S102, the temperature of temperature collect module collecting temperature data;
Step S103, microprocessor receives the first data of vibration acquisition module collection and the second number of temperature sensor collection
According to;
Step S104, microprocessor select communication channel and control by wireless communication module by the first data and the second data to
Outer transmission.
5. detection method according to claim 4 is it is characterised in that described step S104 specifically includes:
Step S1041, the RSSI value of microcomputer reads default channel;
Step S1042, whether the RSSI value of relatively described default channel exceedes predetermined upper limit value;
Step S1043, if the RSSI value of described default channel is less than predetermined upper limit value, controls and sends first using default channel
Data and the second data;
Step S1044, if the RSSI value of described default channel is greater than or equal to predetermined upper limit value, controls and switches to next letter
Road, detects subsequent channels RSSI value, and the RSSI value in present channel is less than predetermined upper limit value, then control present channel to send the
One data and the second data.
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Cited By (1)
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CN107466095A (en) * | 2017-08-07 | 2017-12-12 | 上海中信信息发展股份有限公司 | Collecting device power-economizing method and collecting device |
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CN105093177A (en) * | 2014-05-14 | 2015-11-25 | 中国科学院沈阳自动化研究所 | RSSI positioning method based on hopping technology |
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CN1675954A (en) * | 2002-08-23 | 2005-09-28 | 皇家飞利浦电子股份有限公司 | Dynamic frequency selection in a WLAN |
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Application publication date: 20170222 |