CN202340283U - Handheld terminal of global navigation satellite system - Google Patents
Handheld terminal of global navigation satellite system Download PDFInfo
- Publication number
- CN202340283U CN202340283U CN2011204248968U CN201120424896U CN202340283U CN 202340283 U CN202340283 U CN 202340283U CN 2011204248968 U CN2011204248968 U CN 2011204248968U CN 201120424896 U CN201120424896 U CN 201120424896U CN 202340283 U CN202340283 U CN 202340283U
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- housing
- handheld terminal
- camera
- antenna
- laser designator
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Abstract
The utility model provides a handheld terminal of a global navigation satellite system, which does not need a centering rod. The handheld terminal comprises a housing, a display screen arranged on the front side of the housing and a satellite antenna arranged on the housing, wherein a laser indicator and a camera are arranged on the back side of the housing, the laser indicator is used for emitting light beams to the ground to form light spots, and the camera is used for taking images of both the detected points and the light spots; an attitude sensor is arranged in the housing and used for detecting the pitching angle and transverse rolling angle of satellite antenna; and the display screen, the laser indicator, the camera and the attitude sensor are connected to a main control panel which is arranged in the housing.
Description
Technical field
The utility model relates to GLONASS, and (Global navigation Satellites System GNSS), especially relates to the GNSS handheld terminal.
Background technology
GLONASS is the general name of satellite navigation system, can be divided into global system, district system, enhanced system etc.Global system comprises the Galileo system in GPS of USA system, Muscovite GLONASS system, Europe, the dipper system of China, the DORIS satellite-based radio Doppler orbit determination navigation system of France, the PRARE star station Range And Range Rate measuring system of Germany etc.District system comprises: the accurate zenith satellite system of QZSS of Japan, the IRNSS region satellite navigation system of India etc.Enhanced system comprises: the MSAS enhanced system of STARFIRE whole world space base differential system, WAAS WAAS, EGNOS Europe WAAS, Japan etc.
The signal of GNSS terminal to receive global navigational satellite system also calculates location information of terminals, therefore can be used for carrying out geodesic survey.In geodesic survey, the measured point all is to be positioned on the actual object, and the real-time positioning precision of measured point need reach Centimeter Level, therefore in the process at operation GNSS terminal, confirms that location reference point is very important.This reference point is exactly the phase center of antenna, i.e. the home position coordinate of GNSS terminal output is the latitude and longitude coordinates of satellite earth antenna phase center.Guarantee that this latitude and longitude coordinates is identical with the latitude and longitude coordinates of measured point, need the adjustment aerial position, make projection and the measured point of antenna phase center on the horizontal plane of place, measured point overlap, the action of this adjustment antenna phase center is called " centering ".Simultaneously, can receive uniformly from the satellite-signal of different directions with height in order to guarantee satellite antenna, it is parallel with horizontal plane also need to adjust the satellite antenna plane, and this action is called " leveling ".
Measurement type GNSS terminal can be divided into two kinds of non-hand-hold type and hand-hold types.Non-handheld terminal mainly is made up of main frame, handbook, centering rod.Main frame inside mainly comprises satellite earth antenna and positioning calculation module.Handbook is the interactive interface between main frame and the operator, carries out communication through wired or wireless mode between it and the main frame, the operator through handbook to work such as main frame sending controling instruction, reading of data, storage data.Handheld terminal is integrated in satellite antenna and positioning calculation module in the handbook.
Centering rod is a point, and the elongate rod of the threaded post in other end is equipped with the leveling vacuole on the bar.The package assembly of centering rod and main frame guarantees centering rod perpendicular to antenna plane, and axis passes through antenna phase center.Centering rod is used for being adjusted to antenna plane level and making phase center aim at the measured point, also has concurrently simultaneously and raises the function that the antenna minimizing is blocked.
In non-hand-hold type measurement type GNSS terminal, centering rod is indispensable parts, and for handheld terminal, if positioning accuracy request reaches Centimeter Level, traditional mode also is to adopt centering rod.
In the actual mechanical process; The centering rod tip is against on the measured point, and the operator constantly adjusts the angle of centering rod according to the position of vacuole, keeps centering rod perpendicular to horizontal plane; This adjustment needs in the terminal positioning process, to continue to carry out, and therefore can obviously increase work load.
The utility model content
The utility model technical problem to be solved provides a kind of hand-hold type GNSS terminal that does not need centering rod.
The handheld terminal of a kind of GLONASS that the utility model proposed comprises a housing, is furnished with a display screen in the housing front, on housing, is furnished with a satellite antenna.Be furnished with a laser designator and a camera at back side of shell, laser designator is used to send light beam and forms luminous point to ground, and camera is used to take the image that comprises measured point and luminous point.And, in housing, arrange an attitude transducer, be used for the angle of pitch and the roll angle of sensing satellite antenna.Display screen, laser designator, camera and attitude transducer are connected to a master board that is arranged in the housing.
In an embodiment of the utility model, the axis that laser designator is sent light beam place is the phase center of antenna via satellite, and this axis is vertical with antenna plane.
In an embodiment of the utility model, the angle that camera is installed makes laser designator be within the scope of shooting at the luminous point on the measured point through the light beam indication.
In an embodiment of the utility model, attitude transducer is an accelerometer.
In an embodiment of the utility model, GLONASS is a global system.
In an embodiment of the utility model, GLONASS is a district system.
The handheld terminal that the utility model proposed utilizes laser designator indication measured point; Utilize attitude transducer sensing antenna attitude; Utilize electro-photographic head and display screen to show near the image measured point in real time, make operator no longer rely on centering rod and just can accomplish original work.
Description of drawings
For letting above-mentioned purpose, the feature and advantage of the utility model can be more obviously understandable, elaborate below in conjunction with the embodiment of accompanying drawing to the utility model, wherein:
Fig. 1 illustrates the end view of the handheld terminal of the utility model one embodiment.
Fig. 2 illustrates the front view of the handheld terminal of the utility model one embodiment.
Fig. 3 illustrates the circuit structure block diagram of the handheld terminal of the utility model one embodiment.
Fig. 4 illustrate the utility model one embodiment handheld terminal in the leveling process.
Embodiment
The utility model the embodiment that will describe relate to the handheld terminal of Global Navigation Satellite System (GNSS).At this; The GNSS system can comprise global system; The dipper system of the Galileo system in GPS of USA system, Muscovite GLONASS system, Europe, China etc. for example; Also can comprise district system, for example the accurate zenith satellite system of QZSS of Japan, the IRNSS region satellite navigation system of India etc.Handheld terminal can be the equipment that is exclusively used in satellite navigation, the multifunctional equipment of satellite navigation function that can be integrated also.In addition, handheld terminal maybe be compatible multiple GNSS system.
Fig. 1 illustrates the end view of the handheld terminal of the utility model one embodiment.Handheld terminal 100 comprises housing 101, at the positive display screen 102 of arranging of housing, has arranged laser designator 103 and camera 104 at back side of shell.Laser designator 103 can give off laser beam, and shines body surface to form luminous point.Camera 104 can the shot object image, especially can catch this measured point.It is visual that the formed luminous point of laser beam is preferably naked eyes.But this is not construed as limiting, and under the situation of using not visual laser (for example infrared light), camera 104 is configured to catch the not visual laser beam of naked eyes (for example infrared camera), and converts point visual on display screen 102 into.
In addition, satellite antenna 105 is arranged on the housing with external or built-in mode.When satellite antenna 105 is external, its local surface of shell that perhaps all is exposed to.When satellite antenna 105 was built-in, it was hidden in enclosure interior.After satellite earth antenna 105 was arranged on the terminal 100, it has definite phase center O, and was as depicted in figs. 1 and 2.
Fig. 3 illustrates the circuit structure block diagram of the handheld terminal of the utility model one embodiment.As shown in Figure 3, it is in the circuit at center that display screen 102, laser designator 103 and camera 104 and satellite antenna 105 are arranged in master board 110.In circuit, also be furnished with GNSS receiver 106, attitude transducer 107, power supply 108, be arranged in the housing 101.Needing under the situation of voice output, the terminal can have loud speaker 109, and it is arranged on the housing 101 and the part is exposed to surface of shell.Display screen 102, laser designator 103 and camera 104, satellite antenna 105, GNSS receiver 106, attitude transducer 107, power supply 108 and loud speaker 109 all are connected to master board 110.
Usually, satellite earth antenna 105 can receive the signal of navigation satellite broadcasting, and this signal is transferred to GNSS receiver 106.GNSS receiver 106 utilizes the satellite-signal real-time resolving to go out the position of antenna phase center O; GNSS receiver 106 also can receive the auxiliary signal that comes from other enhanced system simultaneously; Utilize auxiliary signal to participate in resolving, can obtain more high-precision location result.
Get back to shown in Figure 1ly, laser designator 103 is installed in the back side of antenna 105, and the laser designator 103 axis phase center O through antenna just that sends the light beam place, and axis is vertical with antenna plane.Like this, the luminous point that on ground or object, forms of the light beam that sent of laser designator 103 can indicate handheld terminal whether to be in desirable measured point.
Camera 104 is installed in the back side of antenna equally, and the angle of installation will guarantee that laser designator 103 indications are within the scope of shooting at the luminous point on the measured point.The picture that camera 104 is taken outputs to display screen 102.
Following at this definition carrier (being terminal 100) coordinate system: initial point is antenna phase center O, and the X axle is parallel to the antenna plane directed forward, and the Y axle is parallel to antenna plane and points to the right side, and Z axle and X, Y constitute right-handed system together.The definition angle of pitch is the angle of carrier around the rotation of Y axle, and roll angle is the angle of carrier around the rotation of X axle.
The position of attitude transducer 107 and satellite antenna 105 will keep relative fixed, does not have relative motion.This can realize through attitude transducer 107 and satellite antenna 105 are fixed on the terminal shell.In the embodiment of the utility model, attitude transducer 107 can be accelerometer, gyroscope, compass or wherein any combination, is used for the angle of pitch β and the roll angle α of instrumented satellite antenna 105.
Here be that example is explained with the accelerometer, accelerometer is a transducer of measuring the carrier acceleration, and the accelerometer that uses among the embodiment of the utility model needs two acceleration analysis elements, the measurement axis X of these two elements at least
1And Y
1Mutually orthogonal, and be parallel to the X axle and the Y axle of carrier coordinate system respectively.When antenna was static, the output valve of accelerometer was exactly the projection components of gravity acceleration g on X axle and Y axle.When the antenna plane was parallel with horizontal plane, gravity acceleration g was perpendicular to X axle and Y axle, so acceleration transducer is output as 0, when antenna plane and horizontal plane are not parallel, the output-response of accelerometer the projection components of g on X axle and/or Y axle.
Fig. 4 illustrate the utility model one embodiment handheld terminal in the leveling process.Shown in step 41, according to the required precision of measuring, allow the operator to preestablish the maximum angle of pitch and maximum roll angle threshold value that antenna allows, accept these settings.In step 42, laser designator 103 emission of lasering beam.And in step 43, camera 104 is taken the image that comprises measured point and indication luminous point, is transferred to master board 110, after master board is handled, is transferred to display screen 102 in step 44 and shows.Like this, the operator observes display screen 102 during practical operation, can see measured point and indication luminous point simultaneously, and operator's portable terminal 100 will be indicated the spot alignment measured point.
After this, and then the attitude of regulating receiver make it satisfy prescribed threshold.In step 45, attitude transducer 107 is measured the angle of pitch and the roll angle of antenna, is transferred to master board 110.When master board 110 is judged in the angle of pitch and the scope of roll angle at prescribed threshold of antenna in step 46, just think that antenna is a level.This moment is like step 47, and master board 110 can inform that antenna elevation angle that the operator is current and roll angle are whether in the limited field of prescribed threshold through any forms such as interface prompt on panel leds, auditory tone cues, the display screen.When the attitude of receiver satisfies prescribed threshold, can position data acquisition and record.
In the above-described embodiments, be exactly to control the error that luminous point departs from the measured point in essence through judging whether the angle of pitch and roll angle surpass threshold value.So, in another embodiment of the present invention, also can the maximum permission offset error of luminous point and the distance on antenna phase center and ground be set by the user, calculate the maximum angle of pitch and the roll angle of permission then in view of the above.
Through such terminal installation and method of operation, the operator can without centering rod just can accomplish whole in leveling work, make efficiency of measurement improve greatly.
Though the utility model discloses as above with preferred embodiment; Right its is not in order to limit the utility model; Any those skilled in the art; In spirit that does not break away from the utility model and scope, when can doing a little modification and perfect, so the protection range of the utility model is when being as the criterion with what claims defined.
Claims (6)
1. the handheld terminal of a GLONASS; Comprise a housing, be furnished with a display screen, on said housing, be furnished with a satellite antenna in said housing front; It is characterized in that; Be furnished with a laser designator and a camera at said back side of shell, said laser designator is used to send light beam and forms luminous point to ground, and said camera is used to take the image that comprises measured point and luminous point; And, in said housing, arrange an attitude transducer, be used for the angle of pitch and the roll angle of the said satellite antenna of sensing;
Wherein, said display screen, said laser designator, said camera, said attitude transducer are connected to a master board that is arranged in the said housing.
2. handheld terminal as claimed in claim 1 is characterized in that, said laser designator is sent the phase center of the axis at light beam place through said satellite antenna, and said axis is vertical with antenna plane.
3. handheld terminal as claimed in claim 1 is characterized in that, the angle that said camera is installed makes said laser designator be within the scope of shooting at the luminous point on the measured point through the light beam indication.
4. handheld terminal as claimed in claim 1 is characterized in that, said attitude transducer is an accelerometer.
5. handheld terminal as claimed in claim 1 is characterized in that, said GLONASS is a global system.
6. handheld terminal as claimed in claim 1 is characterized in that, said GLONASS is a district system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204248968U CN202340283U (en) | 2011-10-31 | 2011-10-31 | Handheld terminal of global navigation satellite system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204248968U CN202340283U (en) | 2011-10-31 | 2011-10-31 | Handheld terminal of global navigation satellite system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202340283U true CN202340283U (en) | 2012-07-18 |
Family
ID=46488965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204248968U Expired - Fee Related CN202340283U (en) | 2011-10-31 | 2011-10-31 | Handheld terminal of global navigation satellite system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202340283U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105162A (en) * | 2013-01-16 | 2013-05-15 | 上海昊集信息科技有限公司 | Mobile data terminal and positioning method thereof |
| CN103576124A (en) * | 2012-08-06 | 2014-02-12 | 弗兰克公司 | Real-time RF signal visualization device |
| WO2014036776A1 (en) * | 2012-09-06 | 2014-03-13 | 付建国 | Combined gps measuring device |
| CN106019342A (en) * | 2016-06-28 | 2016-10-12 | 苏州星恒通导航技术有限公司 | Hand-held split type GNSS positioning reception apparatus based on optical range finding and inclination compensation and position coordinate obtaining method |
-
2011
- 2011-10-31 CN CN2011204248968U patent/CN202340283U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576124A (en) * | 2012-08-06 | 2014-02-12 | 弗兰克公司 | Real-time RF signal visualization device |
| CN103576124B (en) * | 2012-08-06 | 2019-12-10 | 弗兰克公司 | Real-time RF signal visualization device |
| WO2014036776A1 (en) * | 2012-09-06 | 2014-03-13 | 付建国 | Combined gps measuring device |
| CN103105162A (en) * | 2013-01-16 | 2013-05-15 | 上海昊集信息科技有限公司 | Mobile data terminal and positioning method thereof |
| CN106019342A (en) * | 2016-06-28 | 2016-10-12 | 苏州星恒通导航技术有限公司 | Hand-held split type GNSS positioning reception apparatus based on optical range finding and inclination compensation and position coordinate obtaining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20171031 |