GPS传感器 / GPS16X-HVS-PW
RETIRED ›
This product is not available for new orders. We recommend ordering: GPS16X-HVS.
GPS16X-HVS-PW GPS 接收器，用于预接线机箱
Services Available
Repair No
Calibration No
Free Support No

概览

Note: The prewired version of the GPS16X-HVS is now available as an option on the GPS16X-HVS page. 

The GPS16X-HVS-PW is a global positioning system (GPS) receiver that provides position, velocity, and timing information. Campbell Scientific configures the GPS16X-HVS-PW and modifies its cable so that the receiver can more easily interface with our data loggers. This receiver's cable is fitted with a connector for attachment to our prewired enclosures.

优势与特点

  • Allows the data logger to be synchronized to the highly accurate time of the GPS unit
  • Extremely accurate timing pulse (PPS) can be used to synchronize time between the data logger and other instruments
  • Connects directly to a CR800, CR850, CR1000, or CR3000 datalogger when PPP time-synchronizing funtionality is not used.
  • Cable connects directly with a prewired enclosure
  • Differential DGPS capability using real-time WAAS or RTCM corrections yielding 3 to 5 meter position accuracy

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技术说明

GPS16X-HVS-PW 包含接收器和集成天线。它从在轨道上运行的全球定位系统（GPS）卫星接收信号，再使用这些信号计算自己的位置和速度。GPS16X-HVS-PW 还提供高度精确的1次脉冲每秒（PPS）输出，用于精密的定时测量。

GPS16X-HVS-PW 由Garmin International公司制造。坎贝尔设置接收器，并更改它的线缆。更改后线缆末端所配的快速接头与我们的PWENC预接线机箱相兼容，再直接连接到CR800、CR850、CR1000或CR3000 等数据采集器的控制口。

通常使用默认设置。改变默认设置或选项，需要SC110线缆和运行GPS16软件的PC。软件可下载，免费，请登陆Garmin 网站(www.garmin.com)。

默认地，指令预计GPS单元设置成 38400 波特率，输出 GPRMC 和
GPGGA 语句，每秒1次。数据采集器预期秒的起始点一致于
PPS信号的上升边界。如果没有PPS 信号，或者要求的语句出现的频率小于
每秒1次，数据采集器将不会更新自己的时钟。
带更低波特率的GPS 单元可使用GPS 指令，不过相应的波特率不得不设置到
相关的Com端口，可通过连接到数据采集器的设置界面来设置，或通过程序中在BeginProg指令之后的SetStatus
命令来设置。（例如：SetStatus("BaudrateCOM4",19200)）。
波特率低于2400 bps将不会工作，因为GPS 单元将不会发射两个语句
，保证可靠的每秒1次的速率。类似的问题即使在更高的波特率也可能产生，如果太多的
可选GPS 字条串被选中输出。

产品规格

Receiver WAAS enabled. 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites (up to 11 with PPS active) to compute and update the position.
Update Rate Factory set to 1 s between updates. (Programmable from 1 to 900 s.)
PPS Output 1 Hz pulse; 1 µs accuracy (Width factory set to 100 ms.)
Baud Rate Factory set to 38400 bps.
操作温度范围 -30° to +80°C
Storage Temperature Range -40° to +80°C
Operating Voltage 8 to 40 Vdc
Current Drain 65 mA active (@ 12 Vdc)
Velocity Accuracy 0.1 knot RMS steady state
Cable Length 4.57 m (15 ft)
Diameter 9.1 cm (3.58 in.)
Height 4.2 cm (1.65 in.)
Weight 332 g (12 oz)

Position Accuracy (95% typical)
GPS Standard Positioning Service (SPS) < 15 m
DGPS (USCG/RTCM) Correction 3 to 5 m
DGPS (WAAS) Correction < 3 m

Acquisition Times
Reacquisition < 2 s
Hot ~1 s (all data known)
Warm ~38 s (initial position, time and almanac known, ephemeris unknown)
Cold ~45 s

兼容性

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

数据采集器

Product Compatible Note
21X (retired)
CR10 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired) Contact Campbell Scientific about using the GPS16X-HVS-PW with this data logger.
CR295X (retired)
CR3000 (retired) May require an adapter. If PPS input is required, use the A300 level shifter.
CR500 (retired)
CR5000 (retired) The CR5000 can be connected using an SDM-SIO1A.
CR510 (retired)
CR6
CR800 (retired) May require an adapter. If PPS input is required, use the A300 level shifter.
CR850 (retired) May require an adapter. If PPS input is required, use the A300 level shifter.
CR9000 (retired) Contact Campbell Scientific about using the GPS16X-HVS-PW with this data logger.

Additional Compatibility Information

Data Logger Considerations

Our CR6, CR800, CR850, CR1000, and CR3000 dataloggers typically use the CRBasic GPS() instruction to read the GPS16X-HVS-PW.

For the GPS() instruction to set the time or use the pulse from the GPS sensor, some data loggers need an updated clock chip. Some data loggers will require an adapter to convert the 3V PPS output of the GPS16X-HVS-PW to a 5 V signal. 

The clock chip is factory replaced, which requires an RMA (Return Material Authorization). Data loggers with the following serial numbers need an updated chip:

Data Logger Serial Number
CR1000M < 20409
CR800, CR850 < 7920
CR3000 < 3168
CR6 Works with all

In August 2014, Garmin changed the GPS16X-HVS-PW PPS output signal from 5 V to 3 V. Units with serial numbers greater than 1A4189318 have a 3 V PPS output signal. When this new design is used with a CR800, CR850, CR1000, or CR3000 datalogger, a 3 V to 5 V voltage shifter is required for use with the PPS signal output. The SW12V or A300 can be used for this purpose. This level shifter is NOT required for the CR6 datalogger.

Mounting

The GPS16X-HVS-PW mounts to a mast or crossarm using the CM235 Magnetic Mounting Stand. Typically, the GPS16X-HVS mounts to the CM235 magnetically with the addition of the 17212 Magnetic Mount. Alternatively, the GPS16X-HVS can be mounted directly to the CM235 using three M4 screws supplied with the 17212 or by the customer.

相关技术文档

常见问题解答

GPS16X-HVS-PW: 5

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  1. If the “gps_ready” output of the GPS() instruction is stuck at or near zero and the data logger clock is not being set, what might be the cause?

    The following are possible causes:

    • The GPS receiver is not producing the correct sentences.
    • The GPS receiver is configured with too low of a baud rate.
    • The GPS receiver is producing too many sentences for a given 1 s period.
    • The GPS receiver does not have a PPS (pulse per second) line correctly connected to the data logger.
    • The GPS receiver is a unit with a pulse-per-signal that is not 1 Hz.
  2. When the GPSReady variable is not 10, does the data logger still synchronize with the PPS signal?

    No. The system needs to be stable before the information output is used to synchronize the clock. When PPS is not being used, clock operation proceeds as normal, such as when a GPS receiver is not connected.

  3. How can four GPS16X-HVS receivers be connected to the COM ports of a data logger to read all four NMEA strings?

    This can be done, but only one GPS() instruction can be included in a program because it is not desirable to have multiple inputs competing for clock synchronization. Use the SerialOpen() and SerialInRecord() instructions to pull in the data from the multiple sensors, and use the SplitStr() instruction to parse the data out.

  4. If the “pps” field returned by the GPS() instruction usually displays “990000,” what might be the cause?

    Refer to the CRBasic Editor Help for the GPS() instruction. The system is working correctly. The data logger clock has been synchronized and is detecting a PPS line low to high transition within a 10 ms window before the start of the second.

  5. How can latitude and longitude data from a GPS16X-HVS receiver be recorded on a data logger and then parsed out?

    To record the data, do the following:

    1. Pull in one or more NMEA sentences from the receiver.
    2. Pull out longitude and latitude information from the received data.
    3. Store that data in a user-defined data table.

    The easiest method for receiving and parsing out latitude and longitude information is to use the GPS() instruction.

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