JPS5815069B2 - Loran time difference display method - Google Patents
Loran time difference display methodInfo
- Publication number
- JPS5815069B2 JPS5815069B2 JP721379A JP721379A JPS5815069B2 JP S5815069 B2 JPS5815069 B2 JP S5815069B2 JP 721379 A JP721379 A JP 721379A JP 721379 A JP721379 A JP 721379A JP S5815069 B2 JPS5815069 B2 JP S5815069B2
- Authority
- JP
- Japan
- Prior art keywords
- time difference
- loran
- time
- display
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/04—Details
- G01S1/047—Displays or indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Networks Using Active Elements (AREA)
- Navigation (AREA)
Description
【発明の詳細な説明】
本発明は電波航法計器の一種である小型ロランにおいて
、単一の時間差を表示するための表示器を用いて、２個
の時間差を表示する機能を有する表示方式を提供するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a display method for a small-sized Loran, which is a type of radio navigation instrument, that has the function of displaying two time differences using a single display for displaying time differences. It is something to do.
ロラン特にロランＣ受信機の普及は近年めざましいもの
があり、多くの商船、漁船及びレジャー用ボートの受け
る恩恵は、特にロランＣの精度の高いことにより非常に
大なるものがある。The spread of Loran, especially Loran C receivers, has been remarkable in recent years, and many merchant ships, fishing boats, and leisure boats have benefited greatly from the high accuracy of Loran C.
特に漁船においては直接漁獲に影響するため、ロランＣ
の重要性は日々に高くなってきている。Especially on fishing boats, since it directly affects the catch, Loran C
is becoming more important day by day.
しかるに普及したとはいいながらまだロランＡの受信機
から見ると価格が高く一層の価格低下が望まれている。However, although it has become popular, the price of the Loran A receiver is still high, and further price reduction is desired.
このため一部では、時間差の表示を学−として一時に１
時間差を表示する如くし、表示する時間差値を手動また
は自動的に切り換えて２時間差を交互ｌこ表示させるこ
とによってコストダウンをはかつたロランが使用されて
いる。For this reason, some people use the display of time differences as a science to display one time at a time.
Loran is used to reduce costs by displaying the time difference and displaying the two-hour difference alternately by manually or automatically switching the time difference value to be displayed.
また、このようなロランでは外形を小型にできるため、
装備場所が非常に制限される小型船では都合がよい。In addition, since this type of Loran can be made smaller in size,
This is convenient for small ships where equipment space is very limited.
しかるに実用上は船位を出すためには２時間差が必要で
あり、ごく限られた地点にある好漁場に再度致達するに
は、２時間差が同時に見られる方が格段に便利であるこ
とい言うまでもない。However, in practical terms, a two-hour difference is necessary to determine the ship's position, and it goes without saying that it is much more convenient to be able to see the two-hour difference at the same time in order to re-reach a good fishing spot in a very limited location. .
しかるに特定の海域附近まで致達するのは２時間差が同
時ｌこ見られなくともそれほどの不便はなく、限定され
た地点を見つける際に２時間差が同時に必要となる。However, it is not so inconvenient to reach a specific sea area even if two hours are not visible at the same time, and a two-hour difference is necessary when finding a limited point.
この場合必要なのは時間差の上位桁ではな１く下位桁で
あって、例えばｏ、ｉ ｕｓ 、 ｔ ｕｓせいぜＧ）
ＩＯｕｓの桁が必要であるにすぎない。In this case, what is needed is not the upper digit of the time difference but the lower digit, for example o, i us, t us (at most G)
Only IOus digits are needed.
そこで本願は上記した実用土の必要性を考慮した表示方
式を提供するものであって、以下に詳細を示す。Therefore, the present application provides a display method that takes into consideration the above-mentioned needs for practical soil, and details thereof will be shown below.
第１図は従来の表示方式を示すものであって、１はロラ
ン電波をウリ入れるためのアンテナであり、２は受信器
であって、アンテナよりのロラン信号を時間差測定に適
した信号に変換する。Fig. 1 shows the conventional display system, where 1 is an antenna for receiving LORAN radio waves, and 2 is a receiver that converts the LORAN signal from the antenna into a signal suitable for time difference measurement. do.
３は時間差測定器で受信器よりの信号を元に、自船の位
置を算出するに必要なロラン信号の時間差を測定する。3 is a time difference measuring device that measures the time difference between the Loran signals necessary to calculate the own ship's position based on the signal from the receiver.
位置の測定（こは２時間差が必要なため、時間差測定器
より少なくとも四ラン従局の内２局に対する時間差を生
じる。Measuring the position (because this requires a two-time difference, the time difference measuring device produces a time difference for at least two of the four-run slave stations).
この時間差情報を時間差■と時間差２とすると、時間差
■の情報は４の表示器１にて時間差として数値表示され
、時間差２の情報は５の表示器２１こて時間差として数
値表示される。Assuming that the time difference information is a time difference (2) and a time difference (2), the information on the time difference (2) is numerically displayed as a time difference on the display 1 of 4, and the information on the time difference 2 is numerically displayed as a time difference on the display 21 of 5.
通常時間差は０．■マイクロ秒以上６桁の表示によるこ
とが多い。Normally the time difference is 0. ■It is often displayed in six digits longer than microseconds.
第２図は本願による表示方式を示すもので、１はロラン
電波を取り入れるためのアンテナ、２は受信器、３は時
間差測定器であってその機能は第１図と全く同様である
。FIG. 2 shows a display system according to the present invention, in which numeral 1 is an antenna for taking in Loran radio waves, 2 is a receiver, and 3 is a time difference measuring device, the functions of which are exactly the same as in FIG. 1.
６は前述した本願の表示方式を可能とするため、時間差
１と時間差２の下位桁情報を合成するための時間差合成
器である。Reference numeral 6 denotes a time difference synthesizer for synthesizing the lower digit information of time difference 1 and time difference 2 in order to enable the display method of the present application described above.
本願はまた時間差Ｉと時間差２とを交互に出力とする機
能を合せ持つごとくすることも可能である。The present application can also have a function of alternately outputting the time difference I and the time difference 2.
７は時間差■のみおよび時間差２のみまたは時間差Ｉと
２を交互に表示することと時間差の下位桁を分割表示す
ることとを切り換えるための表示方式切り換えスイッチ
である。Reference numeral 7 denotes a display method changeover switch for switching between displaying only the time difference ■, only the time difference 2, or alternately displaying the time differences I and 2, and displaying the lower digits of the time difference separately.
８は時間差情報をロラン時間差として数値表示するため
の表示器であって、第１図の４または５に相当するもの
である。8 is a display for numerically displaying time difference information as a Loran time difference, and corresponds to 4 or 5 in FIG.
第３図は本願による表示方式を適用したロラン受信機の
操作パネルの実施例である。FIG. 3 is an embodiment of the operation panel of a Loran receiver to which the display method according to the present invention is applied.
１１は電源スィッチを示し、ＯＮの位置に倒すと電源が
入り受信機が動作を開始する。Reference numeral 11 indicates a power switch, and when it is pushed to the ON position, the power is turned on and the receiver starts operating.
１２はチェーンスイッチであって受信しようとするロラ
ンチェーンを選択するものである。12 is a chain switch for selecting the Loran chain to be received.
１３はファンクションスイッチであって、通常ＳＥＬの
位置とし、正しい時間差が得られた時ＮＯＲＭの位置と
する。Reference numeral 13 denotes a function switch, which is normally set to the SEL position and set to the NORM position when a correct time difference is obtained.
Ｍ、Ｓｌ。Ｓ２の位置では、時間差の表示値に変更を与
える必要が生じた場合や、特定のロラン局よりのロラン
電波の測定をやり直させる場合に使用する。M, Sl. The position S2 is used when it is necessary to change the displayed value of the time difference or when redoing the measurement of the Loran radio waves from a specific Loran station.
１４は時間差を正方向に変更するためのブツシュスイッ
チで、１回挿す毎に１０マイクロ秒だけ時間差が増加す
る。14 is a bushing switch for changing the time difference in the positive direction, and each time it is inserted, the time difference increases by 10 microseconds.
１５は時間差を負方向に変更するためのブツシュスイッ
チで１回挿す毎に１０マイクロ秒だけ時間差が減少する
。Reference numeral 15 denotes a bush switch for changing the time difference in the negative direction, and each time it is inserted, the time difference decreases by 10 microseconds.
１６は時間差遣。択スイッチであって、通常同一チェー
ン内の数周の従局の時間差が順次表示されるので、希望
とする従局の時間差が表示された時に挿すと、そこで時
間差が固定される。16 is a temporary worker. It is a selection switch that normally displays the time differences of several rounds of slave stations in the same chain in sequence, so if you insert it when the desired time difference of the slave stations is displayed, the time difference will be fixed there.
再度従局を変える必要がある場合は再びこのスイッチを
挿すと再び順次表示となる。If you need to change the slave station again, insert this switch again and the display will be displayed sequentially again.
１７は時間差表示器であって、ロランの時間差を１００
００マイクロ秒より０．１マイクロ秒までの６桁の数字
にて表示する。17 is a time difference indicator, which indicates the time difference of Loran by 100.
Displayed as a 6-digit number from 00 microseconds to 0.1 microseconds.
１８および１９は表示方式を選択するスイッチであって
、第２図の切換えスイッチ７に相当する。18 and 19 are switches for selecting a display method, and correspond to the changeover switch 7 in FIG.
第４図にスイッチ１８および１９の繰作による表示例を
示す。FIG. 4 shows an example of the display by operating the switches 18 and 19.
ａはスイッチ１９を８１に倒した場合であって、時間差
表示器にはすでに時間差選択スイッチにて指定されたロ
ラン従局の時間差ｌが表示される。A shows a case where the switch 19 is set to 81, and the time difference l of the Loran slave station specified by the time difference selection switch is already displayed on the time difference display.
ｂはスイッチ１９をＳ２に倒した場合であって、時間差
表示器にはすでに時間差選択スイッチにて指定されたロ
ラン従局の時間差２が表示される。b is a case where the switch 19 is turned to S2, and the time difference display device already displays the time difference 2 of the Loran slave station designated by the time difference selection switch.
Ｃはスイッチ１９をＤＵＡＬにスイッチ１８をＡＬＴに
倒した場合であって、すでに時間差選択スイッチ１６で
指定した２従局の時間差ｌと時間差２が交互に時間差表
示器に表示される。C shows a case where the switch 19 is set to DUAL and the switch 18 is set to ALT, and the time difference 1 and time difference 2 between the two slave stations already designated by the time difference selection switch 16 are alternately displayed on the time difference display.
ｄはスイッチ１９をＤＵＡＬ、スイッチ１８を５ＰＬＩ
Ｔに倒した場合であって、すでに時間差選択スイッチ１
６で指定した２従局の時間差の下位３桁が時間差表示器
に２分割表示される。d, switch 19 is DUAL, switch 18 is 5PLI
When the time difference selection switch 1 is pressed down to T, the time difference selection switch 1 is already pressed.
The lower three digits of the time difference between the two slave stations specified in step 6 are displayed in two parts on the time difference display.
本例では分割表示した時、分割したことがはっきり認知
されるように小数点を記入すると同時に各分割表示され
た３桁の時間差の最上位すなわち１０マイクロ秒の桁が
点滅するごとくしである。In this example, when the divided display is performed, a decimal point is written so that the division is clearly recognized, and at the same time, the most significant digit of the three-digit time difference displayed in each divided display, that is, the 10 microsecond digit, blinks.
以上述べたごとく、本願は時間差表示器を分割使用する
ことによって、２個の時間差の下位桁を同時に表示する
ものであって、ローコストかつ２時間差表示の効果を合
せ持つ単一時間差表示器付ロランＣ受信機を提供するも
のである。As stated above, the present application uses a time difference display device to display the lower digits of two time differences simultaneously, and is a single time difference display system that is low-cost and has the effect of displaying two time differences. C receiver.
第１図は従来方式のブロック図、第２図は本願による方
式のブロック図を示す。
第３図は本願による表示方式を適用したロラン受信機の
操作パネルの実施例を示す。
第４図はスイッチ操作による表示例を示す。
１・・・・・・アンテナ、２・・・・・・受信器、３・
・・・・・時間差測定器、４・・・・・・表示器■、５
・・・・・・表示器２．６・・・・・・時間差合成器、
１・・・・・・表示方式切り換えスイッチ、８・・・・
・・時間差表示器、１１・・・・・・電源スィッチ、１
２・・・・・・チェーンスイッチ、１３・・・・・・フ
ァンクションスイッチ、１４．１５・・・・・・ブツシ
ュスイッチ、１６・・・・・・時間差選択スイッチ、１
１・・・・・・時間差表示器、１８，１９・・・・・・
表示方式選択スイッチ。FIG. 1 shows a block diagram of a conventional method, and FIG. 2 shows a block diagram of a method according to the present application. FIG. 3 shows an embodiment of the operation panel of a Loran receiver to which the display method according to the present application is applied. FIG. 4 shows an example of display by switch operation. 1...Antenna, 2...Receiver, 3.
...Time difference measuring device, 4...Display device ■, 5
...Display unit 2.6...Time difference synthesizer,
1...Display method selection switch, 8...
...Time difference display, 11...Power switch, 1
2... Chain switch, 13... Function switch, 14.15... Bush switch, 16... Time difference selection switch, 1
1... Time difference indicator, 18, 19...
Display method selection switch.
Claims (1)
時間差表示器を２分割使用し各々の部分ｌこ２個の時間
差の下位桁を表示する如くすることによって、実用上２
個の時間差を同時に使用可能としたことを特徴とするロ
ラン時間差表示方式。 ２ 単一の時間差表示器を持つロラン受信機において、
２個の時間差を各々切り換えて表示する機能と２個の時
間差を交互に表示する機能と時間差表示器を２分割使用
し、各々の部分に２個の時間差の下位桁を表示する如く
することによって、実用上２個の時間差を同時に使用可
能とする機能とを選択可能としたことを特徴とするロラ
ン時間差表示方式。[Claims] 1. In a Loran receiver with a single time difference indicator,
By dividing the time difference display into two parts and displaying the lower digits of the two time differences in each part, it is possible to
The Loran time difference display method is characterized by allowing multiple time differences to be used simultaneously. 2. In a Loran receiver with a single time difference indicator,
By using the function of switching and displaying two time differences, the function of displaying two time differences alternately, and the use of a time difference display divided into two parts, each part displays the lower digits of the two time differences. The Loran time difference display method is characterized in that it is possible to select a function that allows two time differences to be used at the same time in practical use.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721379A JPS5815069B2 (en) | 1979-01-26 | 1979-01-26 | Loran time difference display method |
| PCT/JP1980/000007 WO1980001611A1 (en) | 1979-01-26 | 1980-01-22 | Loran c-navigation receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP721379A JPS5815069B2 (en) | 1979-01-26 | 1979-01-26 | Loran time difference display method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55101067A JPS55101067A (en) | 1980-08-01 |
| JPS5815069B2 true JPS5815069B2 (en) | 1983-03-23 |
Family
ID=11659712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP721379A Expired JPS5815069B2 (en) | 1979-01-26 | 1979-01-26 | Loran time difference display method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5815069B2 (en) |
| WO (1) | WO1980001611A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614784C1 (en) * | 2016-02-09 | 2017-03-29 | Юлия Алексеевна Щепочкина | Ceramic mass for production of bricks |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4320468Y1 (en) * | 1966-02-21 | 1968-08-28 | ||
| US3579246A (en) * | 1969-03-04 | 1971-05-18 | Northrop Corp | Time sharing recorder drive circuit |
| JPS5655660Y2 (en) * | 1977-11-09 | 1981-12-25 |
-
1979
- 1979-01-26 JP JP721379A patent/JPS5815069B2/en not_active Expired
-
1980
- 1980-01-22 WO PCT/JP1980/000007 patent/WO1980001611A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614784C1 (en) * | 2016-02-09 | 2017-03-29 | Юлия Алексеевна Щепочкина | Ceramic mass for production of bricks |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1980001611A1 (en) | 1980-08-07 |
| JPS55101067A (en) | 1980-08-01 |
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