CN2375950Y

CN2375950Y - Digital magnetic compass device

Info

Publication number: CN2375950Y
Application number: CN 99226960
Authority: CN
Inventors: 庄钠; 殷祖伦
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-15
Filing date: 1999-06-15
Publication date: 2000-04-26
Anticipated expiration: 2009-06-15

Abstract

The utility model relates to a digital magnetic compass device, mainly composed of a master compass, an inferior compass, a data processor and a repeater, and is characterized in that the magnetic rotor of the master compass is composed of a compass card, a vertical shaft, a floater, a magnetic rod, etc., one face of the compass card is a dial scale for indicating, and the other face is a coding disk; another coding disk is fixedly arranged below the moveable disk of the inferior compass, and the places corresponding to two coding disks are respectively provided with photoelectric sensors. Therefore, the variation of the included angle formed by a magnetic needle and a carrier baseline is changed into digital signal to realize the high precise digital display of the magnetic compass, and the error is analyzed and calculated by the data processor and is automatically corrected. The utility model is combined with the systems of the position finding in navigation, the automatic control, the military command, etc., and the magnetic compass is automated and intelligentized.

Description

Digital magnetic compass device

The utility model relates to a kind of digital magnetic compass device, is the director that is used on the delivery vehicle, and it can be widely used in communications and transportation, and tourism is explored, and aquatic product fishery is drawn and measured, especially in the activity of ocean.

At present, aboard ship must with mainly be traditional wet compass because it is safe and reliable, its major defect is that the school difference method is loaded down with trivial details, and autodyne is difficult for proofreading and correct, and installation environment requires high, and inconvenience is used, also be difficult to combine, be difficult for showing that again automaticity is low with other navigating instruments.On the naval vessel of having relatively high expectations, mainly use gyroscope also to claim gyro compass, and the gyro compass complex structure, the maintenance trouble involves great expense, and the starting time is long, can't work once single outage gyro compass in the source because the employing forceful electric power is used as power, this relates to shipping navigation safety.

The purpose of this utility model is to overcome the shortcoming of existing magnetic compass technology, make full use of the advantage of magnetic compass, a kind of digital magnetic compass device is provided, it utilizes the photoelectric coding sensing technology more accurately to show the variation of needle and carrier baseline angle, realized the high precision digital display of magnetic compass, by the error analysis calculation of data processor to magnetic compass, automatic round-off error, and with location navigation, handle automatically or military command system cooperates, realized robotization, the intellectuality of magnetic compass.

The purpose of this utility model is to realize by following technical scheme, it is mainly by master compass, inferior compass, data processor, repeater is formed, be characterized in: master compass is by compass bowl and comprise cover, the seat of honour, the pyx of following seat constitutes, compass bowl is shelved on the gimbal, liquid steam bubble instrument is equipped with at basin loam cake center, basin is built-in with magnet rotor, it is fixed on the vertical center axis by pallet by a compass rose, being equipped with the heavy float that disappears under it is through on the central shaft, disappear and go back fixed cover under the heavy float support perpendicular to axial line is housed, be placed with the Permanentmagnet bar of symmetrical parallel string position or position, symmetry footpath on the support, and also be placed with the counterweight of balance magnet rotor buoyancy and gravity, on the vertical center axis, following two ends bulb globe bearing, be positioned in the compass bowl upper and lower covers center pit, above-mentioned compass rose prints scale and the scale-of-two loop coding that is equipped with the displacement of expression course angle up and down respectively, be equipped with reflective photoelectric sensor and data acquisition circuit plate with compass rose coding one side is corresponding, deliver to data processor thereby make the angular displacement of needle and carrier baseline variable angle be transformed into digital signal; For the angle of measuring carrier head and the tail baseline and score is an angle on the bow, it is digital azimuth mirror that the utility model is equipped with a controllable inferior compass, it is by comprising Moving plate, the clinometer rule of price fixing, bulb globe bearing gimbal and adjustable positioning support are formed, be equipped with the observation utensil on the Moving plate, Moving plate by support in oil seal washer, can horizontally rotate arbitrarily around axle, air-bubble level is housed above the Moving plate, the horizontal angle position code-wheel that adopts the absolute loop coding of scale-of-two is housed below, below code-disc, also be equipped with reflective photoelectric sensor and circuit board thereof accordingly, Moving plate rotates, code-wheel rotates thereupon, by reflective photoelectric sensor and circuit board thereof, the angle on the bow displacement conversion is become digital signal; Deliver to data processor by above-mentioned course that master compass and inferior compass collected and side of a ship angular data and carry out conversion of directions, autodyne is eliminated to measure and is calculated, error correction is calculated, show the true heading or the target true bearing of ship by the repeater formed by display screen and button, and be connected robotization, the intellectuality that has realized magnetic compass with the equipment of outreaching by expansion interface.

The utility model is owing to adopted the code-wheel of the absolute reflected code of scale-of-two in master compass and inferior compass, make expression convert digital signal to the angular displacement of position and angle on the bow, make the magnetic compass total digitalization, and be that special purpose computer carries out conversion of directions by data processor, autodyne is eliminated to measure and is calculated, make the navigating officer break away from the calculating of loaded down with trivial details fallibility and increase work efficiency easily and effectively, without the forceful electric power source, even when any power source all loses, index dial on the digital magnetic compass magnet rotor still can be indicated course and orientation, its collection active digital magnetic compass and passive simulation magnetic compass are all over the body, the intelligent function of existing digital magnetic compass has the reliability of magnetic compass again, therefore can substitute costliness reliably and owe reliable gyro compass.

The utility model embodiment engages accompanying drawing and is described further.

Fig. 1 is the digital magnetic compass device block diagram,

Fig. 2 is a master compass modular construction synoptic diagram;

Fig. 3 is inferior compass modular construction synoptic diagram.

By shown in Figure 1, digital magnetic compass device is by master compass, inferior compass, data processor, repeater, relevant interface and additional facilities are formed, by shown in Figure 2, master compass is by compass bowl 10 and comprise cover 1, the seat of honour 20, the pyx of following seat 25 constitutes, the branch chamber basin body of compass bowl is shelved on the gimbal 8, liquid steam bubble instrument 2 is equipped with at basin loam cake 6 centers, basin is built-in with magnet rotor, it is fixed on the vertical center axis 16 by pallet 4 by a compass rose 5, being equipped with the heavy float 12 that disappears under it is through on the central shaft 16, disappear and go back fixed cover under the heavy float support 14 perpendicular to axial line is housed, be placed with the Permanentmagnet bar 13 of symmetrical parallel string position or position, symmetry footpath on the support, groove and damping fin are radially arranged on the support, also be placed with the counterweight 15 of balance magnet rotor buoyancy on the blade, on the vertical center axis, following two ends bulb globe bearing 3,18, be positioned at compass bowl loam cake 6, in the center pit of lower cover 17, can horizontally rotate, and rely on the magnetic force of Permanentmagnet bar 13, make its 0-180 line stabilization on the earth magnetism line of force.Compass rose 5 top and bottom are printed scale and the scale-of-two loop coding that is equipped with expression course angle position respectively, be the magnetic index dial above, below for code-wheel and code-wheel one towards corresponding reflective photoelectric sensor and the data acquisition circuit plate 7 of being equipped with, be connected with data processing circuit plate 22 in the master compass seat of honour 20 by cable and joint 19, the sensor baseline must be parallel with the carrier fore and aft line, and with the code-wheel plane parallel, and on by vertical center line, can rotate with carrier around the axle center, deliver to data processor thereby make the angular displacement of needle and carrier baseline variable angle be transformed into digital signal.

By shown in Figure 2, the suitable for reading of the compass bowl seat of honour 20 is built-in with by bulb globe bearing 3,18 connect the gimbal 8 of compass bowl, compass bowl loam cake 6 will exceed seat of honour upper edge, a pair of axial line in two pairs of perpendicular bulb globe bearings should be parallel with carrier head and the tail baseline, allow compass bowl maintenance level, the outer handrail ring 9 that has suitable for reading, like this, be convenient to that operating personnel catch in the stormy waves, exempting to cast aside has the circle that can horizontally rotate adjusting around the seat of honour and places the box 11 of eliminating quadrantal deviation soft iron sheet under the handrail ring, can lock after the difference of school, two levels are housed in the bottom, the seat of honour hangs down mutually, be furnished with Permanentmagnet bar and can eliminate the swing arm 21 of autodyne, its two ends fit on the shell, outside shell, lock with regard to scalable, wherein the central axis of any should be parallel with carrier head and the tail baseline slightly down, in the seat data processing plate 22 is housed also, it answers nonmagnetic influence, the seat end, is equipped with and is connected the mounting hole that base is used, be with resilient seal insulating mat 23, and penetrate in the mounting hole with screw rod 24, regulate fixingly with nut, make seat of honour baseline aim at the carrier fore and aft line.There is working hole watertight cover 26 at the base middle part, and fixing threaded hole 27 is arranged at the bottom.

For the angle of measuring carrier head and the tail baseline and score is an angle on the bow, it is digital angular instrument that the utility model is equipped with an inferior compass, by shown in Figure 3, it is by comprising Moving plate 29, the clinometer rule of price fixing 38, ball head gimbal 37 and adjustable positioning support 41 are formed, be equipped with the observation utensil on the Moving plate 29, it is by concave mirror 28, sight frame 30, accurate heart frame 32 and can be clearly show angle on the bow with digital form according to instruction, the orientation, the display screen 33 in course is formed, Moving plate 29 by support in oil seal washer, can horizontally rotate arbitrarily around axle, air-bubble level 31 is housed above the Moving plate, the horizontal angle position code-wheel 34 that adopts the absolute loop coding of scale-of-two is housed below, also be equipped with reflective photoelectric sensor 35 and circuit board 36 and the surface-mounted integrated circuit in price fixing 38 39 below the code-disc accordingly, chassis 40 can seal clinometer rule bottom and counterweight, there are flexible cable and joint 42 in the center, when Moving plate rotates, code-wheel rotates thereupon, by reflective photoelectric sensor and circuit board thereof, the angle on the bow displacement conversion is become digital signal.

By shown in Figure 1, data processor is a special purpose computer, is used for gathering the data that each side provides, and complies with the automatic computing of designing program by instruction, and the result stored or with system in relevant expansion equipment outside relevant portion and the system, carry out processing data information and monitoring.It is gathered by the course, angle on the bow is gathered, Error processing, conversion of directions, the course monitoring, communication shows, expansion interface is formed, by master compass, the course data that inferior compass collects, side of a ship angular data and can be by artificial or import magnetic variation automatically and the autodyne that calculates automatically is input to the conversion of directions part through revised data by the expansion equipment of communicating by letter outside the system, follow procedure carries out very automatically, magnetic, sieve conversion of directions and course, angle on the bow, conversion of course, fix or mobile repeater to each by the wired or wireless communication demonstration, monitor automatic tracing and monitoring driftage situation by the course according to the course of actual measurement.

Deliver to data processor by above-mentioned course that master compass and inferior compass collected and side of a ship angular data and carry out conversion of directions, autodyne is eliminated to measure and is calculated, error correction is calculated, the true heading or the true bearing that show ship by the repeater of forming by display screen and button, also can by instruction show magnetic compass to the position and specify the course from difference, and be connected robotization, the intellectuality that has realized magnetic compass with the equipment of outreaching by expansion interface.

Claims

1, a kind of digital magnetic compass device, it is characterized in that, it is mainly by master compass, inferior compass, data processor, repeater is formed, master compass is by compass bowl (10) and comprise cover (1), the seat of honour (20), the pyx of following seat (25) constitutes, compass bowl is shelved on the gimbal (8), liquid steam bubble instrument (2) is equipped with at basin loam cake (6) center, basin is built-in with magnet rotor, it is fixed on the vertical center axis (16) by pallet (4) by a compass rose (5), being equipped with the heavy float (12) that disappears is through on the central shaft (16), also fixed cover is equipped with the support (14) perpendicular to axial line, be placed with the Permanentmagnet bar (13) of symmetrical parallel string position or position, symmetry footpath on the support, and also be placed with the counterweight (15) of balance magnet rotor buoyancy, on the vertical center axis, following two ends bulb globe bearing (3), (18), be positioned in the compass bowl upper and lower covers center pit, compass rose (5) top and bottom are printed scale and the scale-of-two loop coding that is equipped with the displacement of expression course angle respectively, be index dial above, be code-wheel below, with corresponding reflective photoelectric sensor and the data acquisition circuit plate (7) of being equipped with of code-wheel one side; Inferior compass of the present utility model, it is made up of the clinometer rule that comprises Moving plate (29), price fixing (38), ball head gimbal (37) and adjustable positioning support (41), Moving plate is equipped with the observation utensil on (29), Moving plate (29) by support in oil seal washer, can horizontally rotate arbitrarily around axle, air-bubble level (31) is housed above the Moving plate, the horizontal angle position code-wheel (34) that adopts the absolute loop coding of scale-of-two is housed below, below code-disc, also is equipped with reflective photoelectric sensor (35) and circuit board (36) accordingly.

2, digital magnetic compass device according to claim 1, it is characterized in that, the suitable for reading of the described compass bowl seat of honour (20) is built-in with by bulb globe bearing (3), (18) gimbal (8) of connection compass bowl, the outer handrail ring (9) that is equipped with suitable for reading, and the box (11) of quadrantal deviation soft iron sheet is eliminated in placement, two levels are housed in the bottom, the seat of honour hangs down mutually, be furnished with Permanentmagnet bar and can eliminate the swing arm of autodyne (21), in the seat data processing plate (22) is housed also, the seat end, is equipped with and is connected the mounting hole that base is used, be with resilient seal insulating mat (23), and penetrate in the mounting hole, regulate fixing with nut with screw rod (24).

3, digital magnetic compass device according to claim 1, it is characterized in that the observation utensil that is equipped with on the described inferior compass Moving plate (29) is by concave mirror (28), sight frame (30), accurate heart frame (32) and can be clearly show that with digital form the display screen (33) in angle on the bow, orientation, course form according to instruction.

4, digital magnetic compass device according to claim 1 is characterized in that, described data processor is by the angle on the bow collection, and gather in the course, Error processing, and conversion of directions, course monitoring, communication show that expansion interface seven parts are formed.