This product is no longer available and has been replaced by: GPS16X-HVS.
| 利用できるサービス | |
|---|---|
| 修理 | 非対応 |
| キャリブレーション | 非対応 |
| フリーサポート | 非対応 |
概要
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.
続きを読む利点と特徴
- 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
イメージ
詳細
The GPS16X-HVS-PW consists of a receiver and an integrated antenna. It receives signals from orbiting Global Positioning System (GPS) satellites, and then uses the signals to calculate position and velocity. The GPS16X-HVS-PW also provides a highly accurate one-pulse-per-second (PPS) output for precise timing measurements.
The GPS16X-HVS-PW is manufactured by Garmin International. Campbell Scientific configures the receiver and modifies its cable. The modified cable terminates in a connector compatible with our PWENC prewired enclosures, that then attaches directly to the control ports of a CR800, CR850, CR1000, or CR3000 datalogger.
The default settings are typically used. Changing the default settings or options requires additional hardware to connect to a PC running GPS16 software. (See the Ordering Info on the web page.) The software can be downloaded, at no charge, from the Garmin website (www.garmin.com).
By default, the instruction expects the GPS unit to be set up at 38400 baud, outputting the GPRMC and GPGGA sentences once per second. The data logger expects the start of the second to coincide with the rising edge of the PPS signal. If there is no PPS signal or if the required sentences come out at less than once per second the data logger will not update its clock. GPS units with lower baud rates can be used with the GPS instruction but the baud rate has to be set for the relevant Com port it is to be connected to either in the data logger settings or by including a SetStatus command after the BeginProg instruction in the program (e.g., SetStatus("BaudrateCOM4",19200)). Baud rates below 2400 bps will not work as the GPS unit will not be transmit the two GPS sentences once per second reliably. Similar problems can be encountered even at higher baud rates if too many optional GPS strings are selected to be output.
仕様
| 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. |
| Operating Temperature Range | -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 |
互換性
注意： 以下は代表的な互換性情報を示しています。互換性のある製品や互換性のない製品をすべて網羅したリストではありません。
Data Loggers
| 製品 | 互換性 | 注意 |
|---|---|---|
| 21X (リタイア) | ||
| CR10 (リタイア) | ||
| CR1000 (リタイア) | May require an adapter. If PPS input is required, use the A300 level shifter. | |
| CR10X (リタイア) | ||
| CR200X (リタイア) | ||
| CR206X (リタイア) | ||
| CR211X (リタイア) | ||
| CR216X (リタイア) | ||
| CR23X (リタイア) | Contact Campbell Scientific about using the GPS16X-HVS-PW with this data logger. | |
| CR295X (リタイア) | ||
| CR3000 (リタイア) | May require an adapter. If PPS input is required, use the A300 level shifter. | |
| CR500 (リタイア) | ||
| CR5000 (リタイア) | The CR5000 can be connected using an SDM-SIO1A. | |
| CR510 (リタイア) | ||
| CR6 | ||
| CR800 (リタイア) | May require an adapter. If PPS input is required, use the A300 level shifter. | |
| CR850 (リタイア) | May require an adapter. If PPS input is required, use the A300 level shifter. | |
| CR9000 (リタイア) | Contact Campbell Scientific about using the GPS16X-HVS-PW with this data logger. | |
| CR9000X (リタイア) | Contact Campbell Scientific about using the GPS16X-HVS-PW with this data logger. |
互換性に関する追加情報
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.
ドキュメント
よくある質問
GPS16X-HVS-PWに関するよくある質問の数： 6
すべて展開すべて折りたたむ
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いいえ。情報出力を使用してクロックを同期する前に、システムが安定している必要があります。PPS が使用されていない場合、GPS 受信機が接続されていない場合など、クロックの動作は通常どおり続行されます。
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考えられる原因は次のとおりです。
- GPS 受信機が正しい文を生成していません。
- GPS 受信機のボーレートが低すぎます。
- GPS 受信機が 1 秒間に生成する文が多すぎます。
- GPS 受信機の PPS (パルス/秒) ラインがデータロガーに正しく接続されていません。
- GPS 受信機は、信号あたりのパルスが 1 Hz ではないユニットです。
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GPS() 命令については、CRBasic エディター ヘルプを参照してください。システムは正常に動作しています。データ ロガー クロックは同期されており、秒の開始前の 10 ミリ秒のウィンドウ内で PPS ラインの低から高への遷移を検出しています。
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これは可能ですが、複数の入力がクロック同期を競うことは望ましくないため、プログラムに含めることができる GPS() 命令は 1 つだけです。SerialOpen() 命令と SerialInRecord() 命令を使用して複数のセンサからデータを取り込み、SplitStr() 命令を使用してデータを解析します。
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データを記録するには、次の手順を実行します。
- 受信機から 1 つ以上の NMEA センテンスを取得します。
- 受信したデータから経度と緯度の情報を抽出します。
- そのデータをユーザー定義のデータ テーブルに保存します。
緯度と経度の情報を受信して解析する最も簡単な方法は、 GPS() 命令を使用することです。
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Campbell Scientific は、GPS 時間と同期する目的で GPS16X-HVS を提供しています。GPRMC および GPGGA センテンスを生成する他の GPS ユニットも使用できます。ユニットに PPS (1 秒あたりのパルス) 出力があれば、時間同期の精度が向上する可能性があります。
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