CN103813443A - Distance measuring location system and device and signal transmitting method - Google Patents
Distance measuring location system and device and signal transmitting method Download PDFInfo
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- CN103813443A CN103813443A CN201210454284.2A CN201210454284A CN103813443A CN 103813443 A CN103813443 A CN 103813443A CN 201210454284 A CN201210454284 A CN 201210454284A CN 103813443 A CN103813443 A CN 103813443A
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Abstract
The invention discloses a distance measuring location system and device and a signal transmitting method. In the distance measuring location system, at least three civil radio transmission base stations receive a synchronous control command transmitted by a radar measurement and control center, preset signals transmitted by the civil radio transmission base stations carry self base station characteristic information, and the transmitted signals are reflected by a measured object to form echo signals. A radar receiving station conducts corresponding demodulation on the echo signals according to the synchronous control command to obtain all base station characteristic information and corresponding route delaying data and transmits the base station characteristic information and the corresponding route delaying data to the radar measurement and control center to indicate the radar measurement and control center to calculate and determine the position of the measured object according to the received base station characteristic information and the received route delaying data. The distance measuring location accuracy of the measured object is improved while a complex radar receiving station is not required to be built.
Description
Technical field
The present invention relates to target localization field, relate in particular to a kind of range positioning system, device and signaling method.
Background technology
In existing radar range finding navigation system; for the radar net of transmitting-receiving allosome; conventionally can build one or more Special transmittings base station for it; radar system is determined the position of measured object by receiving the signal of himself transmitting base station transmitting, but for this radar system, in order to complete the range finding location to the measured object on a large scale; need to build a lot of transmitting base stations for it; and the cost that those transmitting base stations are built is very high, and easily found by enemy, thereby destroyed.Therefore, for fear of the problems referred to above, prior art utilizes other civil radio transmitting base station (for example broadcasting television base station) as incoherent irradiation source, by receive passively measured object to civil radio transmitting base station transmit (for example broadcast television signal) reflection produce echo-signal, measured object is followed the tracks of and is located.Particularly, such as the radar receiving station that is distributed in multiple places receives the straight ripple signal that broadcasting television base station is sent, it is the echo-signal that broadcast television signal and this broadcast television signal form after measured object reflection, and from echo-signal, demodulate measured object reflected wave path delay of time, realize the range finding location to measured object.
But in above-mentioned localization method, due between civil radio transmitting base station and radar receiving station without any relation, civil radio transmitting base station and radar receiving station are operated under non-collaborative state, therefore in order to determine the locus of measured object, must set up very complicated radar receiving station system, and this method realizes low to the range finding positioning precision of measured object.
Summary of the invention
The embodiment of the present invention provides a kind of range positioning system, device and signaling method, in order to solve the radar receiving station system complex existing in prior art, to the low problem of measured object range finding positioning precision.
The embodiment of the present invention is by the following technical solutions:
A kind of range positioning system, comprises at least three civil radio transmitting base stations, radar receiving station and radar control center, wherein,
Civil radio transmitting base station, be used for receiving Synchronization Control instruction, and according to Synchronization Control instruction, the modulation signal of the base station characteristic information of civil radio transmitting base station self is carried in generation, and modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of civil radio transmitting base station;
Radar receiving station, for receiving Synchronization Control instruction and echo-signal, according to Synchronization Control instruction, from echo-signal, demodulate base station characteristic information and the path delay of time data, and by base station characteristic information and the path delay of time data be sent to radar control center; Wherein, echo-signal is that measured object is by the default signal that transmits and form of reflection civil radio transmitting base station;
Radar control center, for sending Synchronization Control instruction to civil radio transmitting base station, radar receiving station, and according to the base station characteristic information receiving and the path delay of time data determine the position of measured object.
A kind of signal transmitting method, comprising:
The Synchronization Control instruction that civil radio transmitting base station receiving radar measurement and control center sends;
According to Synchronization Control instruction, the modulation signal of the base station characteristic information of described civil radio transmitting base station self is carried in generation, and described modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station.
A kind of range finding positioner, comprising:
Receiving element, for receiving Synchronization Control instruction and echo-signal; Wherein, echo-signal is that measured object is by the default signal that transmits and form of reflection civil radio transmitting base station;
Echo Processing unit, for the Synchronization Control instruction receiving according to receiving element, from echo-signal, demodulate base station characteristic information and the path delay of time data by the base station characteristic information demodulating and the path delay of time data be sent to radar control center, with indicate radar control center according to the base station characteristic information receiving and the path delay of time data determine the position of measured object.Beneficial effect of the present invention is as follows:
In the such scheme that the embodiment of the present invention provides, at least three civil radio transmitting base stations receive after the Synchronization Control instruction of radar control center transmission, the modulation signal of the base station characteristic information of above-mentioned civil radio transmitting base station self is carried in generation, and this modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station; This default transmitting forms echo-signal after measured object reflection; Radar receiving station is according in Synchronization Control instruction, echo-signal is carried out to corresponding demodulation process, obtain each base station characteristic information and its corresponding data in the path delay of time, and by base station characteristic information and the path delay of time data be sent to radar control center, with indicate radar control center according to receive base station characteristic information and the path delay of time data calculative determination measured object position.Than prior art, owing to having carried the base station characteristic information of each civil radio transmitting base station that radar receiving station can identify in default transmitting, radar receiving station, by the demodulation of echo-signal is obtained to base station characteristic information, determines the locus of each civil radio transmitting base station according to base station characteristic information; And under the relevant control of Synchronization Control instruction, civil radio transmitting base station and radar receiving station are in cooperation synchronous regime, and therefore radar receiving station is without just can obtain easily, exactly the default data in the path delay of time that transmit corresponding of each civil radio transmitting base station through complicated calculating.According to the base station characteristic information of each civil radio transmitting base station self and its corresponding data in the path delay of time, the locus of measured object just can be determined in radar control center.As can be seen here, the range positioning system that the embodiment of the present invention provides, without in setting up complicated radar receiving station, has improved the precision to measured object range finding location.
Accompanying drawing explanation
A kind of range positioning system structure chart that Fig. 1 provides for the embodiment of the present invention;
The range positioning system structure chart using Digital Television transmitting base station as civil radio transmitting base station that Fig. 2 provides for the embodiment of the present invention;
The method flow diagram of a kind of signaling method that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For solving the radar receiving station system complex that exists in prior art and the problem low to the range finding positioning precision of measured object, the embodiment of the present invention has proposed a kind of range positioning system.Wherein, at least three civil radio transmitting base stations are receiving after the Synchronization Control instruction of radar control center transmission, produce separately the modulation signal of the base station characteristic information that carries civil radio transmitting base station self, and above-mentioned modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station; What those civil radio transmitting base stations were default transmit forms echo-signal after measured object reflection; Radar receiving station is according to Synchronization Control instruction, those echo-signals are carried out to corresponding demodulation process, obtain characteristic information and the Qi Ge data in the self-corresponding path delay of time of all civil radio transmitting base stations, and by above-mentioned base station characteristic information and the path delay of time data be sent to radar control center, with indicate radar control center according to receive base station characteristic information and the path delay of time data calculative determination measured object position.In the range positioning system that the embodiment of the present invention provides, owing to having carried the base station characteristic information of each civil radio transmitting base station that radar receiving station can identify in default transmitting, radar receiving station determines the locus of each civil radio transmitting base station according to the base station characteristic information obtaining; And under the relevant control of Synchronization Control instruction, civil radio transmitting base station and radar receiving station are in cooperation synchronous regime, and therefore radar receiving station is without just can obtain easily, exactly the default data in the path delay of time that transmit corresponding of each civil radio transmitting base station through complicated calculating.Just can determine the locus of measured object according to the base station characteristic information of each civil radio transmitting base station self and its corresponding data radar measurement and control center in the path delay of time.As can be seen here, the range positioning system that the embodiment of the present invention provides, without in setting up complicated radar receiving station, has improved the precision to measured object range finding location.
Below in conjunction with Figure of description, embodiments of the invention are described, should be appreciated that embodiment described herein, only for description and interpretation the present invention, is not limited to the present invention.And in the situation that not conflicting, the feature in embodiment and implementation column in this explanation can be interosculated.
Embodiment 1
Based on above-mentioned basic thought, a kind of range positioning system that the embodiment of the present invention provides as shown in Figure 1.Wherein, civil radio transmitting base station first 11, civil radio transmitting base station second 12, civil radio transmitting base station the third 13, for receiving after the Synchronization Control instruction that radar control center 15 sends, produce respectively the modulation signal of the base station characteristic information that carries civil radio transmitting base station self, and this modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station.And radar receiving station 14, the Synchronization Control instruction and the echo-signal that send for receiving radar measurement and control center 15, and according to Synchronization Control instruction, from three echo-signals, demodulate respectively base station characteristic information and the path delay of time data, and by three base station characteristic informations and three the path delay of time data be sent to radar control center 15.Wherein, this echo-signal is that measured object presets by reflection civil radio transmitting base station the signal that transmits and form, and because the system shown in Fig. 1 exists three base stations, therefore in the embodiment of the present invention, has three echo-signals.
In addition, radar control center 15 in Fig. 1 is except for sending Synchronization Control instruction to civil radio transmitting base station first 11, civil radio transmitting base station second 12, civil radio transmitting base station the third 13, radar receiving station 14, the base station characteristic information also sending for receiving radar receiving station 14 and the path delay of time data, and according to base station characteristic information and the path delay of time data determine the position of measured object.
Particularly, Synchronization Control instruction comprises synchronised clock and work order.Wherein synchronised clock is specifically for making clock and the clock of radar receiving station 14 and the clock synchronous at radar control center of clock, civil radio transmitting base station the third 13 of clock, civil radio transmitting base station second 12 of civil radio transmitting base station first 11.Work order is specifically for controlling civil radio transmitting base station first 11, civil radio transmitting base station second 12, civil radio transmitting base station the third 13 transmittings default transmitting separately.
In the embodiment of the present invention, base station characteristic information can comprise base station numbering or comprise some other information that can characterize base station position information.Comprise that with base station characteristic information base station is numbered example, conventionally locus, the base station coordinate (as longitude, latitude and elevation) of base station numbering and civil radio transmitting base station in advance corresponding stored in radar receiving station 14 or radar control center 15.Thereby the locus of transmitting base station just can be determined in radar receiving station 14 or radar control center 15 according to base station numbering.Optionally, base station characteristic information also can directly comprise base station coordinates.
Based on above-mentioned base station characteristic information, the locus of each civil radio transmitting base station just can be determined in radar control center 15, as the longitude of civil radio transmitting base station, latitude and elevation, in conjunction with the data in the path delay of time of the locus of known radar receiving station 14 and three echo-signals of acquisition, radar control center 15 is by the locus of three echo-signal joinings of calculative determination, be the locus of measured object, then by specifying sequential that the locus of measured object is coupled together and determined the movement locus of measured object.
In addition, base station characteristic information can also comprise one or more of following information: enciphered message, reply instruction, frequency mark, time tag etc.Wherein, enciphered message is mainly used in base station numbering to be encrypted control, to guarantee the fail safe of base station spatial positional information.Reply instruction mainly as the identifying information of distinguishing enemy and we, for example, in military affairs are used, measured object is during for our aircraft, in the time carrying the modulation signal of replying instruction and reflect to form echo-signal through our aircraft, our aircraft can be replied instruction and the corresponding relation of replying report according to what set in advance, automatically this is replied instruction and makes corresponding reply report, and be carried in echo-signal to inform the identity of radar receiving station measured object; And in the time that measured object is enemy's aircraft, enemy's aircraft can not replied instruction and makes and reply report this, thereby make the radar receiving station can be according to whether carrying the identity that picks out measured object for the reply report of answer signal in echo-signal.
Choosing of civil radio transmitting base station is very flexible, for example Digital Television transmitting base station, mobile communication base station etc.Those civil radio transmitting base stations have self default transmitting, for example Digital Television base station transmitting digital television signal, mobile communication base station transmitting mobile communication signal etc.
In sum, the range positioning system that the embodiment of the present invention provides, owing to having carried the base station characteristic information of each civil radio transmitting base station that radar receiving station can identify in default transmitting, radar receiving station, by the demodulation of echo-signal is obtained to base station characteristic information, determines the locus of each civil radio transmitting base station according to base station characteristic information; And under the relevant control of Synchronization Control instruction, civil radio transmitting base station and radar receiving station are in cooperation synchronous regime, and therefore radar receiving station is without just can obtain easily, exactly the default data in the path delay of time that transmit corresponding of each civil radio transmitting base station through complicated calculating.According to the base station characteristic information of each civil radio transmitting base station self and its corresponding data in the path delay of time, the locus of measured object just can be determined in radar control center.As can be seen here, the range positioning system that the embodiment of the present invention provides, without in setting up complicated radar receiving station, has improved the precision to measured object range finding location.
Embodiment 2
Utilize Digital Television transmitting base station as the range positioning system of civil radio transmitting base station as shown in Figure 2, this system is made up of Digital Television transmitting base station A 21, Digital Television transmitting base station B 22, Digital Television transmitting base station C 23, radar receiving station 24, radar control center 25.Wherein Digital Television transmitting base station A 21, Digital Television transmitting base station B 22, the internal structure of Digital Television transmitting base station C 23 can be identical with the function of realization, and lower mask body illustrates the 26S Proteasome Structure and Function of transmitting base station as an example of Digital Television transmitting base station A 21 example.
Digital Television transmitting base station A 21 comprises digital television signal generation unit A 211, shines source processing unit, synchronous communication transmission unit A213, transmitter A214, five parts of antenna A215.The Synchronization Control instruction that Digital Television transmitting base station A21 sends by synchronous communication transmission unit A213 receiving radar measurement and control center 25, and produce synchronised clock, control according to source processing unit A212 and produce the modulation signal that carries this base station characteristic information simultaneously, and modulation signal is inserted in the digital television signal that digital television signal generation unit A 211 produces, launch by transmitter A 214, antenna A 215.
Wherein, Digital Television transmitting base station A 21, Digital Television transmitting base station B 22, Digital Television transmitting base station C 23, radar receiving station 24, radar control center 25 all comprise respectively synchronous communication transmission unit.This unit specifically for setting up transmission link between Digital Television transmitting base station A 21, Digital Television transmitting base station B 22, Digital Television transmitting base station C 23, radar receiving station 24, radar control center 25, this transmission link can for transmit Synchronization Control instruction, base station characteristic information and the path delay of time information data such as data, and provide unified reference clock signal.
In sum, what the embodiment of the present invention provided utilizes in the range positioning system of Digital Television transmitting base station as civil radio transmitting base station, three digital transmission of television base station A, B, C receive after the Synchronization Control instruction of radar control center transmission, what in each transmitting base station, comprise produces respectively and carries the modulation signal of base station characteristic information separately according to source processing unit, and this modulation signal is inserted in the digital television signal of digital television signal generation unit generation, through the antenna transmission of each transmitting base station; Those digital television signals that comprised base station characteristic information form echo-signal after measured object reflection; Echo Processing unit in radar receiving station is according to Synchronization Control instruction, echo-signal is carried out to corresponding demodulation process, obtain each base station characteristic information and its corresponding data in the path delay of time, and by base station characteristic information and the path delay of time data be sent to radar control center, with indicate radar control center according to receive base station characteristic information and the path delay of time data calculative determination measured object position.Owing to having carried the base station characteristic information of each Digital Television transmitting base station that radar receiving station can identify in digital television signal, radar receiving station, by the demodulation of echo-signal is obtained to base station characteristic information, determines the locus of each Digital Television transmitting base station according to base station characteristic information; And under the relevant control of Synchronization Control instruction, each Digital Television transmitting base station and radar receiving station are in cooperation synchronous regime, and therefore radar receiving station is without the data in the path delay of time corresponding to digital television signal that just can obtain easily, exactly each Digital Television transmitting base station transmitting through complicated calculating.According to the base station characteristic information of each Digital Television transmitting base station self and its corresponding data in the path delay of time, the locus of measured object just can be determined in radar control center.As can be seen here, the range positioning system that the embodiment of the present invention provides, without in setting up complicated radar receiving station, has improved the precision to measured object range finding location.
A kind of range positioning system providing for the embodiment of the present invention, the embodiment of the present invention also provides a kind of signal transmitting method, and as shown in Figure 3, this specifically comprises the following steps the method flow chart:
Because choosing of civil radio transmitting base station is very flexible, substantially existing civilian transmitting base station (for example Digital Television transmitting base station that can emitting electromagnetic wave, mobile communication transmitting base station) can serve as civil radio transmitting base station, therefore choosing multiple civil radio transmitting base stations is easy to realize, and, the transmitting base station of choosing is more, and the data in the path delay of time that follow-up radar receiving station obtains are just more, just more accurate for the locus of measured object and the location of movement locus.
A kind of distance-measuring and positioning method providing for the embodiment of the present invention, the embodiment of the present invention also provides a kind of range finding positioner.This device specifically comprises:
Receiving element, for receiving Synchronization Control instruction and echo-signal; Wherein, echo-signal is that measured object is by the default signal that transmits and form of reflection civil radio transmitting base station;
Echo Processing unit, for the Synchronization Control instruction receiving according to receiving element, from echo-signal, demodulate base station characteristic information and the path delay of time data, and by the base station characteristic information demodulating and the path delay of time data be sent to radar control center, with indicate radar control center according to the described base station characteristic information receiving and the path delay of time data determine the position of measured object.
In sum, in the signaling method providing in the embodiment of the present invention and range finding positioner, for example, owing to having carried the base station characteristic information of each civil radio transmitting base station that range finding positioner (radar receiving station) can identify in default transmitting, range finding positioner determines the locus of each civil radio transmitting base station according to the base station characteristic information obtaining; And under the relevant control of Synchronization Control instruction, civil radio transmitting base station and range finding positioner are in cooperation synchronous regime, and the positioner of therefore finding range is without just can obtain easily, exactly the default data in the path delay of time that transmit corresponding of each civil radio transmitting base station through complicated calculating.According to the base station characteristic information of each civil radio transmitting base station self and its corresponding data in the path delay of time, the locus of measured object just can be determined in radar control center.As can be seen here, the range positioning system that the embodiment of the present invention provides, without in setting up complicated range finding positioner, has improved the precision to measured object range finding location.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. a range positioning system, comprises at least three civil radio transmitting base stations, radar receiving station and radar control center, it is characterized in that:
Civil radio transmitting base station, be used for receiving Synchronization Control instruction, and according to described Synchronization Control instruction, the modulation signal of the base station characteristic information of described civil radio transmitting base station self is carried in generation, and described modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station;
Radar receiving station, be used for receiving Synchronization Control instruction and echo-signal, according to described Synchronization Control instruction, from echo-signal, demodulate base station characteristic information and the path delay of time data, and by described base station characteristic information and the path delay of time data be sent to radar control center; Wherein, described echo-signal is the signal that measured object forms by reflecting the default transmitting of civil radio transmitting base station modulation signal;
Radar control center, for sending Synchronization Control instruction to civil radio transmitting base station, radar receiving station, and the described base station characteristic information sending according to radar receiving station and the path delay of time data determine the position of measured object.
2. the system as claimed in claim 1, is characterized in that, described Synchronization Control instruction comprises synchronised clock and work order; And
Described synchronised clock is specifically for making clock, the clock of radar receiving station and the clock synchronous at radar control center of civil radio transmitting base station.
3. system as claimed in claim 1 or 2, is characterized in that, described base station characteristic information, except comprising the numbering of base station, also comprises the one or more of following information:
Enciphered message, reply instruction, frequency mark, base station coordinates and time tag.
4. the system as claimed in claim 1, is characterized in that, described civil radio transmitting base station comprises according to source processing unit;
The described source processing unit that shines is used for: according to the Synchronization Control instruction receiving, the modulation signal of the base station characteristic information of civil radio transmitting base station self is carried in generation, and described modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station.
5. the system as claimed in claim 1, is characterized in that, described radar receiving station comprises Echo Processing unit;
Described Echo Processing unit specifically for: according to described Synchronization Control instruction, from echo-signal, demodulate base station characteristic information and the path delay of time data; By the base station characteristic information demodulating and the path delay of time data be sent to radar control center, with indicate radar control center according to the described base station characteristic information receiving and the path delay of time data determine the position of measured object.
6. the system as claimed in claim 1, is characterized in that, civil radio transmitting base station, radar receiving station and radar control center all comprise synchronous communication transmission unit;
Described synchronous communication transmission unit specifically for: between center, set up transmission link at civil radio transmitting base station, radar receiving station, radar control; Wherein, described transmission link be used for transmitting Synchronization Control instruction, base station characteristic information and the path delay of time data.
7. a signal transmitting method, is characterized in that, comprising:
The Synchronization Control instruction that civil radio transmitting base station receiving radar measurement and control center sends;
According to described Synchronization Control instruction, the modulation signal of the base station characteristic information of described civil radio transmitting base station self is carried in generation, and described modulation signal is inserted to default the transmitting of civil radio transmitting base station, through the antenna transmission of described civil radio transmitting base station.
8. a range finding positioner, is characterized in that, comprising:
Receiving element, for receiving Synchronization Control instruction and echo-signal; Wherein, described echo-signal is that measured object is by the default signal that transmits and form of reflection civil radio transmitting base station;
Echo Processing unit, for the Synchronization Control instruction receiving according to described receiving element, from echo-signal, demodulate base station characteristic information and the path delay of time data, and by the base station characteristic information demodulating and the path delay of time data be sent to radar control center, with indicate radar control center according to the described base station characteristic information receiving and the path delay of time data determine the position of measured object.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210454284.2A CN103813443A (en) | 2012-11-13 | 2012-11-13 | Distance measuring location system and device and signal transmitting method |
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| CN201210454284.2A CN103813443A (en) | 2012-11-13 | 2012-11-13 | Distance measuring location system and device and signal transmitting method |
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| CN201210454284.2A Pending CN103813443A (en) | 2012-11-13 | 2012-11-13 | Distance measuring location system and device and signal transmitting method |
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| CN105572662A (en) * | 2015-05-14 | 2016-05-11 | 周颖平 | Range-based localization method, system and device |
| CN107783146A (en) * | 2017-09-07 | 2018-03-09 | 四川九洲电器集团有限责任公司 | It is a kind of to utilize microwave signal and the target identification method and device of optical signalling |
| CN114526027A (en) * | 2022-02-17 | 2022-05-24 | 烟台杰瑞石油装备技术有限公司 | Hydraulic cutting equipment and control method thereof |
| CN114651422A (en) * | 2019-11-14 | 2022-06-21 | 索尼集团公司 | Communication device and method for secure communication |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105572662A (en) * | 2015-05-14 | 2016-05-11 | 周颖平 | Range-based localization method, system and device |
| CN105572662B (en) * | 2015-05-14 | 2017-11-14 | 周颖平 | A kind of distance-measuring and positioning method, system and device |
| CN107783146A (en) * | 2017-09-07 | 2018-03-09 | 四川九洲电器集团有限责任公司 | It is a kind of to utilize microwave signal and the target identification method and device of optical signalling |
| CN114651422A (en) * | 2019-11-14 | 2022-06-21 | 索尼集团公司 | Communication device and method for secure communication |
| CN114526027A (en) * | 2022-02-17 | 2022-05-24 | 烟台杰瑞石油装备技术有限公司 | Hydraulic cutting equipment and control method thereof |
| CN114526027B (en) * | 2022-02-17 | 2023-12-22 | 烟台杰瑞石油装备技术有限公司 | Hydraulic cutting apparatus and control method thereof |
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