CN101539626A - Wireless action detecting system and wireless action detecting method - Google Patents
Wireless action detecting system and wireless action detecting method Download PDFInfo
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- CN101539626A CN101539626A CN200810081987A CN200810081987A CN101539626A CN 101539626 A CN101539626 A CN 101539626A CN 200810081987 A CN200810081987 A CN 200810081987A CN 200810081987 A CN200810081987 A CN 200810081987A CN 101539626 A CN101539626 A CN 101539626A
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Abstract
The invention relates to a wireless action detecting system and a wireless action detecting method. In the wireless action detecting system which uses two directional antennae with different antenna directions to detect the action of a target object, a wireless received signal generated by a wireless signal transmitted or reflected by the two directional antenna receiving target object is treated by a wireless preceding-stage received signal based on a time-division multiplexing processing mode or a parallel processing mode so as to generate a first signal and a second signal. According to the ratio of the first signal to the second signal as well as the strength indicator value of the received signal, the signal processing is carried out to generate a direction signal and a distance signal of the target object relative to the wireless action detecting system. According to the changed value of the direction signal and the distance signal at two time points, a speed signal of the target object is calculated, and an acceleration signal of the target object is further calculated and can be used to provide a photographic monitoring or sensing system to perform real-time tracking processing, anti-theft monitoring processing, action sensing processing or action remote control processing.
Description
Technical field
The present invention relates to a kind of wireless motion detection system and method, especially relate to a kind of wireless motion detection system and method that utilizes two oriented antennas that different antennae points to the action that detects an object.
Background technology
At present to the location technology of portable radio with GPS (Global PositioningSystem, GPS) be the most general localization method, the development of GPS is to be presided over by U.S. Department of Defense, cooperate the support of Department of Transportation and finish, this technology be transferred among the people use, be applied in the relevant operations such as navigator fix, precision measurement and standard time thereafter.Global positioning system altogether has 26 artificial satellites and is distributed on 6 tracks and turns round, each track is mutually 55 degree angles, be provided at the user who thinks GPS and tellurianly anyly be not subjected to landform or build the place that the thing facility covers, all can receive the signal of 4 to 8 satellites and located, so, GPS can provide the locating information of high accurancy and precision, but the complexity of its required system is higher, and be not suitable for low system complexity demands of applications, for example to the patrol guard's in general factory or building patrol monitoring, or to the security monitoring of child's whereabouts etc.
Other has a kind of received signal intensity index (Receiving Signal StrengthIndication that utilizes, RSSI) the designed localization method of technology, when the utilization of RSSI localization method doubles when the distance of wireless signal transmission end and wireless signal receiving end, the received signal intensity index value of the wireless signal that is received at the wireless signal receiving end can reduce the characteristic of 6dBm, with the distance between detected wireless signals transmitting terminal and the receiving end, therefore utilize 3 groups of wireless signal receiving ends just can orient the position of wireless signal transmission end, but if will monitor or sensing system in order to control a photography, carry out the tracing and monitoring operation of object, the position signalling of object only is provided, when the object fast moving, be not easy to control video camera and carry out corresponding quick rocking-turn operation, and reach the purpose of instant follow shot object.The wireless motion detection mode that the present invention proposes, promptly at the object that this kind of wireless signal is arranged, the execution motion detection is handled, and can shake the control processing in order to provide a photography supervision or sensing system to carry out instant tracking process, anti-thefting monitoring processing, action sensing processing or action.
Summary of the invention
According to embodiments of the invention, it discloses a kind of wireless motion detection system, in order to detect the action of an object, this system comprises one first oriented antenna, one second oriented antenna, a wireless prime receiver, a timer and a signal processor.First oriented antenna is in order to receive one first wireless signal.Second oriented antenna is in order to receive one second wireless signal, and the antenna direction of second oriented antenna is different from the antenna direction of first oriented antenna.Wireless prime receiver is coupled in first oriented antenna and second oriented antenna, in order to produce one first signal and a secondary signal according to first wireless signal and second wireless signal.Timer is in order to provide a timing signal.Signal processor is coupled in wireless prime receiver to receive first signal and secondary signal, also be coupled in timer receiving timing signal, in order to produce a distance signal and the direction signal that object corresponds to wireless motion detection system according to first signal and secondary signal.Signal processor comprises a rate signal generation unit, the rate signal generation unit in order to according to a variable quantity of a variable quantity of distance signal, direction signal, and timing signal produce a rate signal of object.
According to embodiments of the invention, it also discloses a kind of wireless motion detection system, in order to detect the action of an object, this system comprises one first oriented antenna, one second oriented antenna, a wireless prime transceiver, a timer and a signal processor.First oriented antenna is in order to receiving one first wireless receiving signal, or launches a wireless transmission signal.Second oriented antenna is in order to receiving one second wireless receiving signal, or emission wireless transmission signal, and the antenna direction of second oriented antenna is different from the antenna direction of first oriented antenna.Wireless prime transceiver is coupled in first oriented antenna and second oriented antenna, in order to producing one first received signal and one second received signal, or send signal according to one and produce the wireless transmission signal according to the first wireless receiving signal and the second wireless receiving signal.Timer is in order to provide a timing signal.Signal processor is coupled in wireless prime transceiver, in order to receive first received signal and second received signal, or output sends signal, also be coupled in timer receiving timing signal, in order to produce a distance signal and the direction signal that object corresponds to wireless motion detection system according to first received signal and second received signal.Signal processor comprises a rate signal generation unit, the rate signal generation unit in order to according to a variable quantity of a variable quantity of distance signal, direction signal, and timing signal produce a rate signal of object.
According to embodiments of the invention, it also discloses a kind of wireless motion detection method, in order to detect the action of an object according to a wireless motion detection system, the method comprises utilizes one first oriented antenna and one second oriented antenna, the Target Wireless signal that the receiving target thing reflects or launches, to produce one first wireless signal and one second wireless signal, based on time multiplexed processing pattern or parallel processing pattern, carrying out the wireless prime received signal of first wireless signal and second wireless signal handles, to produce one first signal and a secondary signal, according to first signal and secondary signal, produce a distance signal and the direction signal of object with respect to wireless motion detection system, and according to a variable quantity of distance signal, one variable quantity of direction signal, and a timing signal, a rate signal of calculating object.
Description of drawings
Fig. 1 shows the function block schematic diagram according to the wireless motion detection system of first embodiment of the invention.
Fig. 2 shows the function block schematic diagram according to the wireless motion detection system of second embodiment of the invention.
Fig. 3 shows the function block schematic diagram according to the wireless motion detection system of third embodiment of the invention.
Fig. 4 shows the function block schematic diagram according to the wireless motion detection system of fourth embodiment of the invention.
Fig. 5 shows the process flow diagram according to wireless motion detection method of the present invention.
The reference numeral explanation
101,301 photographies monitor or sensing system
110,210,310,410 wireless motion detection systems
111,311 timers
115,185,315,385 signal processors
116,316 rate signal generation units
117,317 acceleration signal generation units
120,419,489 wireless prime receivers
125,325 controllable switch
130,330 select signal that circuit is provided
135 first directive property receiving antennas
140 second directive property receiving antennas
150 omni-directional antenna
160,190,420,490 wireless prime transmitters
170,370 objects
180,280,380,480 portable radios
195 directive property transmitting antennas
221,422,492 demodulation processors
222,423,493 tuners
223,424,494 low noise amplifiers
224,421,491 decoding decompression processors
261,293,425,495 encoding compression processing devices
262,291,426,496 modulators
263,292,427,497 radio-frequency power amplifiers
320,390 wireless prime transceivers
335 first oriented antennas
340 second oriented antennas
395 oriented antennas
421,491 decoding decompression processors
425,495 encoding compression processing devices
The S505-S545 step
Embodiment
For making purpose of the present invention, feature and advantage more apparent and understandable, hereinafter according to wireless motion detection system and method for the present invention, elaborate in conjunction with the accompanying drawings especially exemplified by embodiment, but the technical scope that the embodiment that is provided is not contained in order to restriction the present invention, carry out precedence and the method flow number of steps is more non-in order to limit it, any execution flow process that is reconfigured by method step, the method with impartial effect that produces is the technical scope that the present invention is contained.
Please refer to Fig. 1, Fig. 1 shows the function block schematic diagram according to the wireless motion detection system 110 of first embodiment of the invention.Wireless motion detection system 110 is in order to detect the actuating signal of an object 170, object 170 can comprise a portable radio 180, the photography that wireless motion detection system 110 can be coupled in order to monitored object thing 170 monitors or sensing system 101, so that the actuating signal that detects object 170 to be provided, make photography supervision or sensing system 101 may command video cameras carry out corresponding quick rocking-turn operation, and reach the purpose of instant follow shot object 170.Wireless motion detection system 110 comprises a signal processor 115, one wireless prime receiver (receiving front end) 120, one controllable switch (controllable switch) 125, one selects signal that circuit 130 is provided, one timer 111, one wireless prime transmitter (transmitting front end) 160, one first directive property receiving antenna (directional receiving antenna) 135, one second directive property receiving antenna 140, an and omni-directional transmitting antenna (omni-directional transmitting antenna) 150.Signal processor 115 comprises a rate signal generation unit 116 and an acceleration signal generation unit 117.
The first directive property receiving antenna 135 and the second directive property receiving antenna 140 are set up respectively with one first antenna direction and one second antenna direction that corresponds to wireless motion detection system 110, first antenna direction and second antenna direction are the antenna direction of different directions, in one embodiment, first antenna direction is in reverse to second antenna direction.The first directive property receiving antenna 135 and the second directive property receiving antenna 140 can be respectively an inner printed antenna (internal printed antenna), an outside printed antenna (external printed antenna), an inner plate aerial (internal patch antenna) or an outside plate aerial (external patch antenna).
Wireless prime receiver 120 has the output port that an input port is coupled in controllable switch 125, and an output port is coupled in signal processor 115.Wireless prime transmitter 160 has an input port and is coupled in signal processor 115, reaches an output port and is coupled in omni-directional transmitting antenna 150, in order to drive omni-directional transmitting antenna 150 emission one continous way wireless signal or pulsed wireless signals.Signal processor 115 has the output port that one first connectivity port is coupled in wireless prime receiver 120, one second connectivity port is coupled in selects signal that the input port of circuit 130 is provided, one the 3rd connectivity port is coupled in the input port of wireless prime transmitter 160, and one the 4th connectivity port is coupled in timer 111.Timer 111 is in order to provide a timing signal to signal processor 115.
Select signal to provide circuit 130 to produce the selection signal according to the control signal that signal processor 115 is provided, selecting signal is a time varying signal, in one embodiment, the selection signal can be the square-wave signal at two voltage level alternations, in another embodiment, if the voltage level change of the control signal that signal processor 115 is provided can be in order to the switching manipulation of control controllable switch 125, then select signal to provide circuit 130 to omit, that is to say that directly the control signal that is provided with signal processor 115 is worked as the switching manipulation of signal with control controllable switch 125 that elect.Controllable switch 125 selects signal based on the time division multiplexing pattern the first wireless receiving signal and the second wireless receiving signal to be sent to wireless prime receiver 120 according to the time change of selecting signal to provide circuit 130 to be produced.Wireless prime receiver 120 is carried out the first wireless receiving signal and the low noise processing and amplifying of the second wireless receiving signal, tuning processing or demodulation process to produce one first signal and a secondary signal based on the time division multiplexing pattern.
The direction signal of the object 170 that is produced by signal processor 115, distance signal, displacement signal, rate signal, and acceleration signal all can provide to photography supervision or sensing system 101, photography monitors or sensing system 101 can be carried out quick rocking-turn operation in order to drive video camera, and reach the purpose of instant tracing and monitoring object 170, that is to say, photography monitors or sensing system 101 can be according to the rate signal and the acceleration signal of object 170, drive video camera and carry out quick rocking-turn operation, monitor on the screen in one in order to the lock onto target thing toward the moving direction of object 170.
In another embodiment, object 170 can not comprise portable radio 180, and the Target Wireless signal that the first directive property receiving antenna 135 and the second directive property receiving antenna 140 receive in order to produce the first wireless receiving signal and the second wireless receiving signal, the Target Wireless signal that its wireless signal of being launched for object 170 reflective all transmitting antennas 150 produces, when the Target Wireless signal that is received when the first directive property receiving antenna 135 and the second directive property receiving antenna 140 is the continous way wireless signal, it is ditto described that signal processor 115 produces the performed signal Processing of distance signal, when the Target Wireless signal that is received when the first directive property receiving antenna 135 and the second directive property receiving antenna 140 is the pulsed wireless signal, first signal and secondary signal are pulsed signal, signal processor 115 can correspond to a pulse delay time of 150 transponder pulse formulas of omni-directional transmitting antenna wireless signal according to first signal and secondary signal, produces distance signal to carry out signal Processing.In addition, controllable switch 125 and selection signal provide circuit 130 to omit, promptly the first directive property receiving antenna 135 and the second directive property receiving antenna 140 can be coupled directly to wireless prime receiver 120, so wireless prime receiver 120 can receive the first wireless receiving signal and the second wireless receiving signal simultaneously, carry out light parallel signal processings again to produce first signal and secondary signal.
Please refer to Fig. 2, Fig. 2 shows the function block schematic diagram according to the wireless motion detection system 210 of second embodiment of the invention.Wireless motion detection system 210 is still in order to detect the actuating signal of object 170, object 170 can comprise a portable radio 280, photography supervision or sensing system 101 that wireless motion detection system 210 still can be coupled in order to monitored object thing 170 are to provide the actuating signal that detects object 170.
Wireless motion detection system 210 is replaced into a low noise amplifier 223, a tuner 222, a demodulation processor 221, and the decoding decompression processor 224 of coupled in series with the wireless prime receiver 120 of wireless motion detection system 110, also wireless prime transmitter 160 is replaced into an encoding compression processing device 261, a modulator 262, an and radio-frequency power amplifier 263.In addition, the portable radio 280 of object 170 is replaced into wireless prime transmitter 190 modulator 291, a radio-frequency power amplifier 292, and the encoding compression processing device 293 of coupled in series.
In another embodiment, when the Target Wireless signal is produced by wireless signal that omni-directional transmitting antenna 150 sent by object 170 reflection, encoding compression processing device 261, modulator 262, and radio-frequency power amplifier 263 is in order to will be from a wireless prime signal of signal processor output, carry out wireless prime and send relevant treatment, send wireless signal to object 170 through omni-directional transmitting antenna 150 again, it can be the relevant treatment of carrying out according to the character that sends signal that prime that this is wireless sends relevant treatment, for example work as the wireless signal that transmitted only in order to detection signal strength index (RSSI), and when not comprising extra information, then can only carry out modulation treatment and radio-frequency power processing and amplifying, promptly omit encoding compression processing.Same Fig. 1 of principle of work of all the other function squares of Fig. 2 is so repeat no more.
Please refer to Fig. 3, Fig. 3 shows the function block schematic diagram according to the wireless motion detection system 310 of third embodiment of the invention.Wireless motion detection system 310 is in order to detect the actuating signal of an object 370, object 370 can comprise a portable radio 380, the photography that wireless motion detection system 310 can be coupled in order to monitored object thing 370 monitors or sensing system 301, so that the actuating signal that detects object 370 to be provided.Wireless motion detection system 310 comprises a signal processor 315, one wireless prime transceiver (transceiver front end) 320, one controllable switch 325, and selects signal that circuit 330, a timer 311, one first oriented antenna 335 and one second oriented antenna 340 are provided.Signal processor 315 comprises a rate signal generation unit 316 and an acceleration signal generation unit 317.
First oriented antenna 335 and second oriented antenna 340 are set up respectively with one first antenna direction and one second antenna direction that corresponds to wireless motion detection system 310, first antenna direction and second antenna direction are the antenna direction of different directions, in one embodiment, first antenna direction can be in reverse to second antenna direction.First oriented antenna 335 and second oriented antenna 340 can be respectively an inner printed antenna, an outside printed antenna, an inner plate aerial or an outside plate aerial.
Signal processor 385 provides a wireless prime signal, encoding compression processing, modulation treatment and radio-frequency power processing and amplifying that wireless prime transmitter 390 is carried out wireless prime signal are to produce one first wireless transmission signal, and oriented antenna 395 is launched one first wireless signal with the first wireless transmission signal with the sending direction that corresponds to portable radio 380.First oriented antenna 335 and second oriented antenna 340 receive first wireless signal and produce one first wireless receiving signal and one second wireless receiving signal with first antenna direction and second antenna direction respectively.
Select signal to provide circuit 330 can produce one and select signal according to the control signal that signal processor 315 is provided, selecting signal is a time varying signal, in one embodiment, the selection signal can be the square-wave signal at two voltage level alternations, in another embodiment, if the voltage level change of the control signal that signal processor 315 is provided can be in order to the switching manipulation of control controllable switch 325, then select signal to provide circuit 330 to omit, that is to say that directly the control signal that is provided with signal processor 315 is worked as the switching manipulation of signal with control controllable switch 325 that elect.Controllable switch 325 selects signal based on the time division multiplexing pattern the first wireless receiving signal and the second wireless receiving signal to be sent to wireless prime transceiver 320 according to the time change of selecting signal to provide circuit 330 to be produced.Wireless prime transceiver 320 is carried out the first wireless receiving signal and the low noise processing and amplifying of the second wireless receiving signal, tuning processing, demodulation process or decoding decompression to produce one first signal and a secondary signal based on the time division multiplexing pattern.
In like manner, direction signal, distance signal, displacement signal, rate signal or the acceleration signal of the object 370 that is produced by signal processor 315 all can provide to photography and monitor or sensing system 301, photography monitors or sensing system 301 can be carried out quick rocking-turn operation in order to drive video camera, and reaches the purpose of instant tracing and monitoring.
In addition, signal processor 315 can be with the direction signal that is produced, distance signal, displacement signal, rate signal, or acceleration signal is sent to wireless prime transceiver 320, wireless prime transceiver 320 can be carried out encoding compression processing to the signal of 315 feed-ins of signal processor, modulation treatment or radio-frequency power processing and amplifying are to produce one second wireless transmission signal, the second wireless transmission signal is sent to first oriented antenna 335 or second oriented antenna, 340, the first oriented antennas 335 or second oriented antenna 340 via controllable switch 325 and the second wireless transmission signal can be sent out with one second wireless signal.Oriented antenna 395 receives second wireless signal and produces a wireless receiving signal, and be fed into wireless prime transceiver 390, with reduction direction signal, distance signal, displacement signal, rate signal or acceleration signal, signal processor 385 is carried out the signal Processing of direction signals, distance signal, displacement signal, rate signal or acceleration signal to be shown in an output interface to the low noise processing and amplifying of wireless receiving signal, tuning processing, demodulation process or decoding decompression in wireless prime transceiver 390 execution.
In another embodiment, object 370 can not comprise portable radio 380, promptly utilize first oriented antenna, 335 emissions, one pulsed radio detection signal, reflection through object 370, receive the pulsed radio detection signal that is reflected by second oriented antenna 340, to produce the second wireless receiving signal, utilize second oriented antenna, 340 another pulsed radio detection signals of emission again, reflection through object 370, receive the pulsed radio detection signal that is reflected by first oriented antenna 335, to produce the first wireless receiving signal, thereafter, wireless motion detection system 310 can carry out aforesaid signal Processing to produce the direction signal corresponding to object 370 according to the first wireless receiving signal and the second wireless receiving signal, distance signal, displacement signal, rate signal, and acceleration signal.In addition, controllable switch 325 and selection signal provide circuit 330 to omit, promptly the first directive property receiving antenna 335 and the second directive property receiving antenna 340 can be coupled directly to wireless prime receiver 320, so wireless prime receiver 320 can receive the first wireless receiving signal and the second wireless receiving signal simultaneously, carry out signal Processing again producing first signal and secondary signal, or the second wireless transmission signal is sent to first oriented antenna and second oriented antenna simultaneously.
Please refer to Fig. 4, Fig. 4 shows the function block schematic diagram according to the wireless motion detection system 410 of fourth embodiment of the invention.Wireless motion detection system 410 is still in order to detect the actuating signal of object 370, object 370 can comprise a portable radio 480, photography supervision or sensing system 301 that wireless motion detection system 410 still can be coupled in order to monitored object thing 370 are to provide the actuating signal that detects object 370.
Wireless motion detection system 410 is replaced into a wireless prime receiver 419 and a wireless prime transmitter 420 in parallel with the wireless prime transceiver 320 of wireless motion detection system 310, and the portable radio 480 of object 370 is replaced into a wireless prime receiver 489 and a wireless prime transmitter 490 in parallel with the wireless prime transceiver 390 of portable radio 380.
Wireless prime receiver 419 by a low noise amplifier 424 of coupled in series, a tuner 423, a demodulation processor 422, and a decoding decompression processor 421 is formed, wireless prime transmitter 420 by a radio-frequency power amplifier 427, a modulator 426 of coupled in series, reach an encoding compression processing device 425 and formed.Wireless prime receiver 489 by a low noise amplifier 494 of coupled in series, a tuner 493, a demodulation processor 492, and a decoding decompression processor 491 is formed, wireless prime transmitter 490 by a radio-frequency power amplifier 497, a modulator 496 of coupled in series, reach an encoding compression processing device 495 and formed.
Encoding compression processing device 495 is carried out the encoding compression processing of wireless prime signal to produce one first encoding compression signal, modulator 496 is carried out the modulation treatment of the first encoding compression signal to produce one first wireless modulated signals, and radio-frequency power amplifier 497 is carried out the radio-frequency power processing and amplifying of first wireless modulated signals to produce the first wireless transmission signal.Low noise amplifier 424 is carried out the low noise processing and amplifying to produce one first wireless amplifying signal and one second wireless amplifying signal to the first wireless receiving signal and the second wireless receiving signal respectively based on the time division multiplexing pattern, tuner 423 is carried out Filtering Processing to capture one first wireless frequency selecting signal and one second wireless frequency selecting signal to the first wireless amplifying signal and the second wireless amplifying signal respectively based on the time division multiplexing pattern, demodulation processor 422 is carried out demodulation process to produce first restituted signal and second restituted signal to the first wireless frequency selecting signal and the second wireless frequency selecting signal respectively based on the time division multiplexing pattern, and decoding decompression processor 421 is carried out the decoding decompression to produce first signal and secondary signal to first restituted signal and second restituted signal respectively based on the time division multiplexing pattern.
Direction signal, distance signal, displacement signal, rate signal or acceleration signal that encoding compression processing device 425 can be exported signal processor 315, carry out encoding compression processing to produce one second encoding compression signal, 426 pairs second encoding compression signals of modulator are carried out modulation treatment to produce one second modulation signal, and 427 pairs second modulation signals of radio-frequency power amplifier are carried out the radio-frequency power processing and amplifying to produce the second wireless transmission signal.Low noise amplifier 494 is carried out low noise processing and amplifying to the wireless receiving signal to produce a wireless amplifying signal, tuner 493 is carried out Filtering Processing to wireless amplifying signal to capture a wireless frequency selecting signal, demodulation processor 492 is carried out the demodulation process of wireless frequency selecting signal producing a restituted signal, and decoding decompression processor 491 is carried out decoding decompression to restituted signal with reduction direction signal, distance signal, displacement signal, rate signal or acceleration signal.Same Fig. 3 of principle of work of all the other function squares of Fig. 4 is so repeat no more.
Please refer to Fig. 5, Fig. 5 shows the process flow diagram according to wireless motion detection method of the present invention.The method is in order to detect the action of an object according to a wireless motion detection system, the flow process of wireless motion detection method comprises the following step:
Step S505: utilize one first oriented antenna and one second oriented antenna of wireless motion detection system, the Target Wireless signal that the receiving target thing reflects or launches is to produce one first wireless receiving signal and one second wireless receiving signal;
Step S510:, carry out the wireless prime received signal of the first wireless receiving signal and the second wireless receiving signal and handle, to produce one first signal and a secondary signal based on time multiplexed processing pattern or parallel processing pattern;
Step S515:, produce a distance signal and the direction signal of object with respect to wireless motion detection system according to first signal and secondary signal;
Step S520:, calculate a rate signal of object according to a variable quantity of a variable quantity of distance signal, direction signal, an and timing signal;
Step S525:, calculate an acceleration signal of object according to a variable quantity and the timing signal of rate signal;
Step S530: outbound course signal, distance signal, rate signal or acceleration signal to a photography monitor or sensing system, carry out quick rocking-turn operation to drive video camera, object is locked in one monitors on the screen;
Step S535: the wireless prime of carrying out direction signal, distance signal, rate signal or acceleration signal sends signal Processing to produce a wireless transmission signal;
Step S540: utilize first or second oriented antenna emission wireless transmission signal; And
Step S545: utilize a portable radio of object to receive the wireless transmission signal producing a wireless receiving signal, and the wireless prime received signal of carrying out the wireless receiving signal is handled with reduction direction signal, distance signal, rate signal or acceleration signal.
In the flow process of above-mentioned wireless motion detection method, one second antenna direction of different second oriented antennas of one first antenna direction of described first oriented antenna of step S505, in one embodiment, first antenna direction is in reverse to second antenna direction.In addition, the Target Wireless signal that the described object of step S505 reflects or launches, the Target Wireless signal of launching for the portable radio of object, or reflect the Target Wireless signal that a radio detection signal that wireless motion detection system launched produces for object.When the Target Wireless signal is that object is when reflecting radio detection signal that wireless motion detection system launched and producing, the flow process of wireless motion detection method can also comprise utilizes an omni-directional antenna to launch a radio detection signal, and this radio detection signal can be a pulsed wireless signal or a continous way wireless signal.
When this radio detection signal is the pulsed wireless signal, step S515 is for corresponding to a pulse delay time and a ratio of pulsed wireless signal according to first signal and secondary signal, produce distance signal and the direction signal of object with respect to wireless motion detection system.Otherwise, step S515 is one second received signal intensity index value, and the ratio of one first received signal intensity index value (RSSI), secondary signal according to first signal, produces distance signal and the direction signal of object with respect to wireless motion detection system.
Step S510 is described based on time multiplexed processing pattern or parallel processing pattern, carrying out the wireless prime received signal of the first wireless receiving signal and the second wireless receiving signal handles, for based on time multiplexed processing pattern or parallel processing pattern, carry out the low noise processing and amplifying of the first wireless receiving signal and the second wireless receiving signal, tuning processing, demodulation process or decoding decompression.Step S525 described variable quantity and timing signal according to rate signal, calculate the acceleration signal of object, be the variable quantity of basis, cooperate a time difference of two time points, to calculate the acceleration signal of object at the rate signal of two time points.
From the above, according to wireless motion detection system and method for the present invention, two oriented antennas that utilize the different antennae sensing are to receive wireless signal that portable radio is launched, and two wireless receiving signals that two oriented antennas are received are based on time multiplexed processing pattern or parallel processing pattern, carry out signal Processing with the direction signal that analyzes portable radio, distance signal, displacement signal, rate signal, and acceleration signal.So, the invention provides a kind of wireless motion detection system and method for low system complexity, in order to detect object and to produce the action coherent signal, and can provide the photography of action coherent signal to monitor or sensing system, carry out quick rocking-turn operation to drive video camera, monitor on the screen and object is locked in one, maybe can provide the action coherent signal to object.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (28)
1. wireless motion detection system in order to detect the action of an object, comprises:
One first oriented antenna is in order to receive one first wireless signal;
One second oriented antenna, in order to receive one second wireless signal, the antenna direction of this second oriented antenna is different from the antenna direction of this first oriented antenna;
One wireless prime receiver is coupled in this first oriented antenna and this second oriented antenna, in order to produce one first signal and a secondary signal according to this first wireless signal and this second wireless signal;
One timer is in order to provide a timing signal; And
One signal processor, be coupled in this wireless prime receiver to receive this first signal and this secondary signal, also be coupled in this timer to receive this timing signal, in order to produce a distance signal and the direction signal that this object corresponds to this wireless motion detection system according to this first signal and this secondary signal, this signal processor comprises:
One rate signal generation unit, in order to according to a variable quantity of a variable quantity of this distance signal, this direction signal, and this timing signal produce a rate signal of this object.
2. wireless motion detection as claimed in claim 1 system also comprises:
One omni-directional antenna is in order to launch a wireless signal; And
One wireless prime transmitter is coupled in this signal processor, in order to receive one the 3rd signal, reaches and produces this wireless signal according to the 3rd signal, also is coupled in this omni-directional antenna, in order to export this wireless signal;
Wherein, this object reflects this wireless signal to produce this first wireless signal and this second wireless signal, this wireless signal is a pulsed wireless signal or a continous way wireless signal, this is wireless prime receiver produces this first signal and this secondary signal with parallel processing pattern or time multiplexed processing pattern according to this first wireless signal and this second wireless signal.
3. wireless motion detection as claimed in claim 2 system, wherein this wireless prime transmitter is one to meet the transmitter of IEEE802.15.4 wireless transmission protocol.
4. wireless motion detection as claimed in claim 2 system, wherein this wireless prime transmitter comprises:
One radio-frequency power amplifier is coupled in this omni-directional antenna;
One modulator is coupled in this radio-frequency power amplifier; And
One encoding compression processing device is coupled between this signal processor and this modulator.
5. wireless motion detection as claimed in claim 1 system also comprises:
One controllable switch, has a first input end mouth that is coupled in this first oriented antenna, be coupled in one second input port of this second oriented antenna, select one of signal to select input port in order to receive one, and be coupled in an output port of this wireless prime receiver, in order to transmit this first wireless signal or this second wireless signal according to this selection signal to should this wireless prime receiver;
Wherein this wireless prime receiver is with the time division multiplexing pattern, and the signal Processing of carrying out this first wireless signal and this second wireless signal produces this first signal and this secondary signal.
6. wireless motion detection as claimed in claim 5 system also comprises one and selects signal that circuit is provided, and is coupled in this selection input port of this controllable switch, in order to this selection signal to be provided.
7. wireless motion detection as claimed in claim 1 system, wherein this signal processor also comprises:
One acceleration signal generation unit is coupled in this rate signal generation unit, an acceleration signal that produces this object in order to a variable quantity and this timing signal according to this rate signal.
8. wireless motion detection as claimed in claim 1 system, wherein the antenna direction of this second oriented antenna is in reverse to the antenna direction of this first oriented antenna.
9. wireless motion detection as claimed in claim 1 system, wherein this wireless prime receiver comprises:
One low noise amplifier is coupled in this first oriented antenna and this second oriented antenna;
One tuner is coupled in this low noise amplifier;
One demodulation processor is coupled in this tuner; And
One decoding decompression processor is coupled between this signal processor and this demodulation processor.
10. wireless motion detection as claimed in claim 1 system, wherein this wireless prime receiver is one to meet the receiver of IEEE802.15.4 wireless transmission protocol.
11. a wireless motion detection method in order to according to a wireless motion detection system, detects the action of an object, includes:
Utilize a wireless receiver of this wireless motion detection system to detect from a wireless signal of this object producing an acknowledge(ment) signal intensity index, and judge the power of this wireless signal according to this acknowledge(ment) signal intensity index; And
Utilize a signal processor of this wireless motion detection system, carry out the calculation process of this acknowledge(ment) signal intensity index, in order to produce a distance signal and a movable signal.
12. a wireless motion detection system in order to detect the action of an object, comprises:
One first oriented antenna in order to receiving one first wireless receiving signal, or is launched a wireless transmission signal;
One second oriented antenna in order to receiving one second wireless receiving signal, or is launched this wireless transmission signal, and the antenna direction of this second oriented antenna is different from the antenna direction of this first oriented antenna;
One wireless prime transceiver, be coupled in this first oriented antenna and this second oriented antenna, in order to producing one first received signal and one second received signal, or send signal according to one and produce this wireless transmission signal according to this first wireless receiving signal and this second wireless receiving signal;
One timer is in order to provide a timing signal; And
One signal processor, be coupled in this wireless prime transceiver, in order to receive this first received signal and this second received signal, or export this transmission signal, also be coupled in this timer to receive this timing signal, in order to produce a distance signal and the direction signal that this object corresponds to this wireless motion detection system according to this first received signal and this second received signal, this signal processor comprises:
One rate signal generation unit, in order to according to a variable quantity of a variable quantity of this distance signal, this direction signal, and this timing signal produce a rate signal of this object.
13. wireless motion detection as claimed in claim 12 system, wherein this wireless prime transceiver is one to meet the transceiver of IEEE802.15.4 wireless transmission protocol.
14. wireless motion detection as claimed in claim 12 system, wherein the antenna direction of this second oriented antenna is in reverse to the antenna direction of this first oriented antenna.
15. wireless motion detection as claimed in claim 12 system also comprises:
One controllable switch, has a first input end mouth that is coupled in this first oriented antenna, be coupled in one second input port of this second oriented antenna, select one of signal to select input port in order to receive one, and be coupled in an output port of this wireless prime transceiver, extremely be somebody's turn to do this wireless prime transceiver in order to transmit this first wireless receiving signal or this second wireless receiving signal according to this selection signal, or transmit this wireless transmission signal to this first oriented antenna or this second oriented antenna according to this selection signal;
Wherein this wireless prime transceiver is with the time division multiplexing pattern, and the signal Processing of carrying out this first wireless receiving signal and this second wireless receiving signal produces this first received signal and this second received signal.
16. wireless motion detection as claimed in claim 15 system also comprises one and selects signal which couple this selection input port in this controllable switch is provided, in order to this selection signal to be provided.
17. wireless motion detection as claimed in claim 12 system, wherein this wireless prime transceiver comprises:
One wireless prime receiver is coupled in this signal processor, this first oriented antenna, reaches this second oriented antenna, in order to produce this first received signal and this second received signal according to this first wireless receiving signal and this second wireless receiving signal; And
One wireless prime transmitter is coupled in this signal processor, this first oriented antenna, reaches this second oriented antenna, in order to produce this wireless transmission signal according to this transmission signal.
18. wireless motion detection as claimed in claim 17 system, wherein this wireless prime receiver comprises:
One low noise amplifier is coupled in this first oriented antenna and this second oriented antenna;
One tuner is coupled in this low noise amplifier;
One demodulation processor is coupled in this tuner; And
One decoding decompression processor is coupled between this signal processor and this demodulation processor.。
19. wireless motion detection as claimed in claim 17 system, wherein this wireless prime transmitter comprises:
One radio-frequency power amplifier is coupled in this first oriented antenna and this second oriented antenna;
One modulator is coupled in this radio-frequency power amplifier; And
One encoding compression processing device is coupled between this signal processor and this modulator.
20. wireless motion detection as claimed in claim 12 system, wherein this signal processor also comprises:
One acceleration signal generation unit is coupled in this rate signal generation unit, an acceleration signal that produces this object in order to a variable quantity and this timing signal according to this rate signal.
21. a wireless motion detection method, the action in order to detect an object according to a wireless motion detection system comprises:
Utilize one first oriented antenna and one second oriented antenna, receive the Target Wireless signal that this object reflects or launches, to produce one first wireless signal and one second wireless signal;
Based on time multiplexed processing pattern or parallel processing pattern, carry out the wireless prime received signal of this first wireless signal and this second wireless signal and handle, to produce one first signal and a secondary signal;
According to this first signal and this secondary signal, produce a distance signal and the direction signal of this object with respect to this wireless motion detection system; And
According to a variable quantity of a variable quantity of this distance signal, this direction signal, an and timing signal, calculate a rate signal of this object.
22. wireless motion detection method as claimed in claim 21, wherein according to this first signal and this secondary signal, produce this distance signal and this direction signal of this object with respect to this wireless motion detection system, it is one second received signal intensity index value, and the ratio of one first received signal intensity index value, this secondary signal according to this first signal, produces this distance signal and this direction signal of this object with respect to this wireless motion detection system.
23. wireless motion detection method as claimed in claim 21 also comprises:
According to a variable quantity and this timing signal of this rate signal, calculate an acceleration signal of this object.
24. wireless motion detection method as claimed in claim 23, wherein according to a variable quantity and this timing signal of this rate signal, calculate this acceleration signal of this object, it is basis this variable quantity at this rate signal of two time points, a time difference that cooperates these two time points is to calculate this acceleration signal of this object.
25. wireless motion detection method as claimed in claim 21, wherein based on time multiplexed processing pattern or parallel processing pattern, carrying out the wireless prime received signal of this first wireless signal and this second wireless signal handles, for based on time multiplexed processing pattern or parallel processing pattern, carry out the low noise processing and amplifying of this first wireless signal and this second wireless signal, tuning processing, demodulation process, reach the decoding decompression.
26. wireless motion detection method as claimed in claim 21, other comprises:
Utilize an omni-directional antenna to launch a wireless signal, this wireless signal is a pulsed wireless signal or a continous way wireless signal;
Wherein, utilize this first oriented antenna and this second oriented antenna, receive this Target Wireless signal that this object reflects or launches,, receive this object and reflect this Target Wireless signal that this wireless signal produces for utilizing this first oriented antenna and this second oriented antenna.
27. wireless motion detection method as claimed in claim 26, wherein according to this first signal and this secondary signal, produce this distance signal and this direction signal of this object with respect to this wireless motion detection system, when being this pulsed wireless signal for this wireless signal of launching when this omni-directional antenna, correspond to a pulse delay time and a ratio of this pulsed wireless signal according to this first signal and this secondary signal, produce this distance signal and this direction signal of this object with respect to this wireless motion detection system.
28. wireless motion detection method as claimed in claim 21, wherein according to this variable quantity of this variable quantity of this distance signal, this direction signal, and this timing signal, calculate a rate signal of this object, for according at this variable quantity of this distance signal of two time points and this variable quantity of this direction signal, a time difference that cooperates these two time points is to calculate this rate signal of this object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810081987A CN101539626A (en) | 2008-03-21 | 2008-03-21 | Wireless action detecting system and wireless action detecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810081987A CN101539626A (en) | 2008-03-21 | 2008-03-21 | Wireless action detecting system and wireless action detecting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940924A (en) * | 2016-01-05 | 2017-07-11 | Smk株式会社 | Remote control and remote control system |
| CN107037886A (en) * | 2017-05-27 | 2017-08-11 | 成都索微通讯技术有限公司 | A kind of system and its method of work extracted for human action |
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2008
- 2008-03-21 CN CN200810081987A patent/CN101539626A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940924A (en) * | 2016-01-05 | 2017-07-11 | Smk株式会社 | Remote control and remote control system |
| CN107037886A (en) * | 2017-05-27 | 2017-08-11 | 成都索微通讯技术有限公司 | A kind of system and its method of work extracted for human action |
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