KR102053807B1 - A device for taking of best suitable direction - Google Patents

Abstract

The present invention relates to an apparatus for acquiring optimal azimuth data, which solves an error occurrence problem which may occur in a GPS receiver. The apparatus of the present invention comprises: a GPS receiving unit (11′); a terrestrial magnetism sensor unit (12′) for measuring a shift angle; and a comparison analysis unit (13′) for comparing and analyzing azimuth data from the terrestrial magnetism sensor unit (12′).

Description

A device for taking of best suitable direction

The present invention relates to a device for acquiring vessel optimal azimuth data, and more particularly, to solve an error occurrence problem that may occur in a GPS receiver, and to prevent exposure to external negative effects that may occur in various installation environments. The present invention relates to a device for obtaining optimal azimuth data that enables stable multi-purpose application.

The development of technology for securing bearing data has been carried out for a long time and has shown various achievements, such as developing low-cost bearing data securing means, measuring accurate bearings, and utilizing the position and speed in acquisition direction. These include those that provide effective use in aspects of the ships, yachts, fishing vessels, and small vessels, but as research and development progresses on each of these aspects, there are also problems caused by various shortcomings. There is still a problem in terms of stability and usability related to the most important GPS reception.The GPS reception-related device should be able to operate stably when installed in various installation places. Trust in this stable behavior This will be less problems with these GPS receiving part is related to this problem is the most crucial part of obtaining optimum orientation data can only be further emphasized.

Korean Patent Publication No. 10-2001-0003346

The present invention solves the problem of errors that may occur in the GPS receiver, prevents exposure to external negative effects that can occur in various installation environments, and provides a vessel optimum orientation data acquisition device that enables more stable multi-purpose use It aims to do it.

The present invention provides a bearing data acquisition apparatus comprising: a GPS receiver (11 '); A geomagnetic sensor unit 12 'for measuring a deviation angle from the magnetic north of the earth; It comprises a comparison analysis unit 13 'for measuring the orientation using the position repeatedly measured from the GPS receiver 11', and comparing and analyzing the orientation data from the geomagnetic sensor unit 12 ', the GPS The receiver 11 'includes a GPS receiver 1, the GPS receiver 1 having a casing 3, a display window 5 coupled to the opening 4 in front of the casing 3, and the casing ( 3) a circuit board 7 mounted therein, wherein the casing 3 has a pair of fixed slots in which the circuit board 7 is press-fitted to the left and right inner surfaces of the main body 3-1. Each of the fixed slots 21 includes an upper plate portion 21a and a lower plate portion 21b, and the circuit board 7 includes a first transfer member provided in the lower plate portion 21b. 111 and a transfer part 110 including a second transfer member 112 provided in the upper plate portion 21a, and the lower plate portion 21b is transferred through the transfer portion 110. Provides an azimuth data acquisition device is provided with a seating portion 120 is provided with an end portion of the circuit board to be transmitted, the first sensing unit 121 for detecting the seating of the circuit board 7 is seated. do.

According to the present invention, there is provided an apparatus for obtaining optimum azimuth data, which solves an error occurring in a GPS receiver, prevents exposure to external negative effects that may occur in various installation environments, and enables more stable multi-purpose application. There is an effect that can be provided.

1 is a block diagram of a device for a method for obtaining optimum azimuth data which combines GPS information and information of a geomagnetic sensor in accordance with the present invention.
2 is a hierarchical structure diagram that compares, analyzes and stores the optimal orientation data by using the GPS information and the geomagnetic sensor information of the present invention in parallel.
3 is a general flow diagram of comparing, analyzing, and storing optimum azimuth data in parallel with GPS information and geomagnetic sensor information of the present invention.
4 is a flowchart illustrating GPS information acquisition according to the present invention.
5 is a flowchart illustrating acquisition of geomagnetic sensor information of the present invention.
6 is a flowchart of the data display and output of the present invention.
7 is an algorithm for extracting the optimum azimuth value from the hunting phenomenon by storing and comparing the geomagnetic sensor data of the present invention as 10 continuous acquisition functions.
8 to 11 illustrate a GPS receiver according to the present invention.
12 to 13 are views illustrating components according to FIG. 8.
14 illustrates a GPS receiver according to another embodiment of the present invention.
15 to 25 are views showing the components according to FIG. 14.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Measurement data acquisition means>

1 is a block diagram of a device for a method for obtaining optimum azimuth data which combines GPS information and information of a geomagnetic sensor in accordance with the present invention. 2 is a hierarchical structure diagram that compares, analyzes and stores the optimal orientation data by using the GPS information and the geomagnetic sensor information of the present invention in parallel. 3 is a general flow diagram of comparing, analyzing, and storing optimum azimuth data in parallel with GPS information and geomagnetic sensor information of the present invention. 4 is a flowchart illustrating GPS information acquisition according to the present invention. 5 is a flowchart illustrating acquisition of geomagnetic sensor information of the present invention. 6 is a flowchart of the data display and output of the present invention. 7 is an algorithm for extracting the optimum azimuth value from the hunting phenomenon by storing and comparing the geomagnetic sensor data of the present invention as 10 continuous acquisition functions.

1 to 7, the GPS receiver 11 '; A conventional geomagnetic sensor unit 12 'for measuring the earth's geomagnetism and measuring the deviation angle from the earth's magnetic north; The position, speed and azimuth are measured by using the position repeatedly measured by the GPS receiver 11 ', and the azimuth data from the geomagnetic sensor 12' is compared and analyzed according to the environment. A comparative analysis unit 13 'for selectively taking negative outputs or mixing them to output azimuth data; A controller 14 'which drives a display device as an output of the comparison analyzer 13' or configures and controls a signal path interworking with other devices in the ship; A display unit 15 'linked to the control unit 14' to provide position, orientation, and speed information to the user; The GPS receiver 11 ', the geomagnetic sensor unit 12', the comparison analyzer 13 ', the controller 14' and the display unit 15 'are organically connected. "GPS information and geomagnetic sensor parallel optimal orientation data acquisition device of the present invention configured as described above performs the operation with the algorithm described below, that is, the GPS measurement function is performed based on the GPS receiver, the geomagnetic machine side function is geomagnetic Based on the sensor unit 12 ', the baud rate setting function is performed based on the GPS receiver, the geomagnetic sensor unit, or the comparative analysis unit, and the comparative analysis function, the azimuth data acquisition function, the position data acquisition function, and the velocity data acquisition function are It is performed based on the GPS receiver or the comparison and analysis unit, the system linkage function is performed based on the control unit, and the display function is performed based on the display unit, respectively. The algorithm description of the acquisition method shall apply mutatis mutandis.

However, each component of the apparatus of the present invention may include a general electronic circuit, a microprocessor, and a peripheral device thereof, and the detailed structure description thereof is omitted since the following algorithm is a design level technology that can be fully understood by those skilled in the art. Let's do it. 2 is a hierarchical structure diagram of the "GPS information and geomagnetic sensor parallel optimal orientation data acquisition method (hereinafter referred to as" the present invention method ")" of the present invention, Figure 3 is a general flow diagram of the present invention method, as shown here The present invention is composed of three steps of basic information acquisition step, comparative analysis step, and output step. When power is first applied, a normal initialization step is performed. (L0, 41 ') This step aims to ensure that system programs are not tangled by initializing the various parameters to the preparation stage, as in normal electronic circuits. It may also include means for dealing with unintentional operation during use as a configuration of a watchdog, reset, or the like. Next, the basic information acquisition step of performing the GPS measurement function, geomagnetic measuring function, and baud rate setting function is performed and connected to the comparative analysis step. (L1, 42, 43, 45 ') In this step, the GPS receiver 11' receives the GPS information, acquires the position, azimuth and the velocity, and provides it to the comparison analyzer, which is referred to as a GPS measurement function in the present invention. In addition, the geomagnetic sensor unit 12 'obtains the orientation of the earth's magnetic field as data using a semiconductor sensor, and then corrects this and provides it to the comparative analysis unit 13', which is referred to as a geomagnetic side function in the present invention.

In order to connect the GPS receiver and the geomagnetic sensor to the comparative analysis unit, it is necessary to set a baud rate, which establishes a flow of information for facilitating interworking of various types of information. It is called baud rate setting function. Next, using the information obtained in the basic information acquisition step, a comparative analysis step by the position data acquisition function, the orientation data acquisition function, the speed data acquisition function and the comparison analysis function is performed. (L2, 44, 46, 47, 48, 49 ') In this step, it is essential to compare and analyze various data acquired from the GPS receiver and various data obtained from the geomagnetic sensor to calculate proper azimuth data. In the present invention, it is referred to as a comparative analysis function. In general, an algorithm for extracting longitude and latitude data from a GPS receiver is referred to as a position data acquisition function in the present invention, and an azimuth data extraction function is calculated by repeatedly calculating such a position movement. The speed data acquisition function is used to calculate the moving distance of the position and extract the speed. Here, the GPS measurement function, the ground value machine measurement function, the position data acquisition function, the orientation data acquisition function, and the velocity data acquisition function have been conventionally used in this field. Baud rate setting function to adjust the speed, start sequence function to recognize the starting point of data mainly in asynchronous communication, 12C address function to specify the arrival point of data, data lead function to read data according to a predetermined format, Each data is acquired as a stop sequence function that recognizes the end of the data, and finally, the data output function applied to the NMEA-0183 and / or RS-232C interface is associated with a user or other interlocking device. The comparative analysis function of the present invention compares whether or not the speed is less than the set speed among the speed data to take azimuth data by the GPS receiver at a proper speed or more, and to take azimuth data from the geomagnetic sensor below the proper speed. Do this. In addition, the comparative analysis function of the present invention compares the instability of the orientation by the GPS sensor unit or the instability of the orientation measured from the geomagnetic sensor regardless of whether the proper speed is changed or not, and selects only the relatively stable orientation, or Azimuth can also be extracted as a blending method for synthesizing the intermediate values of the azimuth error ranges. In the present invention, such means are defined as comparative analysis functions.

The description of each step will be easily understood with reference to FIGS. 4, 5, etc. arranged in subroutines. In FIG. 4, the apparatus of the present invention sets a baud rate for initiating communication with the GPS receiver after performing system initialization 21 ′, which is mainly for setting a communication speed between each chip. Then, the position data received from the GPS is acquired, which is a common technique utilizing the means for outputting the latitude and longitude data from the GPS receiver itself. In order to obtain an orientation and a speed, the present invention repeats a process of temporarily storing the position and comparing it with a subsequent position as usual, thereby obtaining a velocity based on the orientation of the moved position and the distance moved back and forth per unit time. do. The information obtained by this process is, of course, repeated algorithms that are temporarily stored for use in the steps described later. 5 is a detailed flowchart for acquiring geomagnetic sensor information according to the present invention. The baud rate setting function is also applied in this process, and the communication method is provided by, for example, the conventional 12C bus method.

Specifically, the start signal 33 'is transmitted, the data is read after address recognition 34' according to the protocol of the 12C bus (35 '), and the stop signal 36' is transmitted with the end of the data. By repeating this process, the orientation data is acquired (37 ') by measuring the position and performing the position shift operation. Therefore, after providing the acquired data to the comparison analysis unit, the start signal ( 33 ') to perform the loop' process of receiving. Here, the sensing of the geomagnetism itself is measured by correcting the deviation with the earth magnetic north as described above, and the correction coefficient is applied to the latitude. The comparison analysis unit 13 'compares and analyzes the two inputted information to obtain an optimal orientation, and provides the determined position, orientation, and velocity data to the controller 14'. same. Referring to FIG. 3, the comparative analysis function of the present invention is configured to compare and analyze the optimal orientation data by simultaneously combining the GPS information and the geomagnetic sensor information and to store the final data. 43 '), that is, temporarily storing data converted into position, orientation, and velocity, and also known velocity data K' at the time of GPS data acquisition 43 'during the K &lt; speed 44' process. If it is less than 3 knots, it is determined that the reliability of the orientation data is low, so that the orientation data 45 'of the geomagnetic sensor is applied. In this case, the information acquired from the GPS receiver 43 ', that is, the position, the direction, and the speed will be used. At this time, the azimuth data 45 'of the geomagnetic sensor to be converted is the subroutine described with reference to FIG. 5, but this is within the scope of the hunting, focusing on the occurrence of hunting when the geomagnetic sensor is used in a ship that is swinging. It also includes a means of producing appropriate results. As a means thereof, for example, it comprises means for auxiliary construction of a mechanism in which the geomagnetic sensor is leveled to prevent hunting, or for reinforcing a separate sensor for recognizing the horizontal state. This focuses on calculating the most accurate direction when the geomagnetic sensor is level with the earth's gravity direction.As a specific means, the geomagnetic sensor itself is constructed mechanically so that it is always horizontal, or only when it is horizontal while it is moving. It can be configured as a means for selectively recognizing as a sensor (for example, weight) and taking the geomagnetic sensor output only at the moment of its horizontal position.

In addition, in the present invention, the geomagnetic sensor has a variable resistance using circuit (for example, a bridge circuit that can be corrected in advance in consideration of the fact that the true north and the magnetic north of the earth are deflected (for example, about 7 degrees around the Korean peninsula). 'Balancing circuit to be used'), but in addition to artificially manipulating the geomagnetic sensor by automatically correcting the deviation of true north and magnetic north in conjunction with the GPS position when it moves out of the Korean Peninsula in connection with the position from the GPS receiver. The output can always point to true north to match the GPS direction and also ensure stability from hunting. In the present invention, as described above, for example, as well as a means for automatically switching to the output of the geomagnetic sensor when the speed K 'is less than 3 knots, the measurement of the GPS measurement and the geomagnetic sensor as usual The result is always measured in parallel and automatically takes the output of the higher accuracy, and then interlocks with the display device. This is because the GPS information has a high probability of error in bad weather such as snow and rain. It is a means to prepare. That is, according to the present invention, the data for storing various information is updated at a relatively long period (49 ') in order to retrieve (48') and store the closest azimuth value of which the error has changed to the minimum value among the GPS measurement results and the geomagnetic sensor measurements. It may also include a means to.

Next, an output step by the display function and the system interlocking function is performed as a result of the comparative analysis function. (L3, 50 ') In this step, the position, orientation, and velocity data already acquired (43') as the GPS receiver are searched and selected in detail.

This is the process of updating to the room position 48 '. After update, the last saved position, bearing, and velocity data are output (50 ') to the display and interface.

The process returns to the process of acquiring the GPS data of 43 '. In this process, the user may selectively operate the GPS information and the geomagnetic sensor information in conjunction with the comparative analysis function.

It is called system linkage function or display function. 6 is a flow chart of the display and output of data in accordance with the present invention, which is also initialized at the beginning 51 'stage, as does each stage, and the baud rate setup 52' stage with the indicator and interface. Set the communication speed. When the data is output 50 'in the state 53' of waiting for the data output 50 'signal of FIG. 6, the data is supplied (54') and then outputted to the display unit 55 'to be displayed. And then RS-232 interface 56 'and NMEA-0183 interface, if necessary

The data is output to 57 ', and the flow returns to the state 53' that is waiting for the next input data. FIG. 7 illustrates the geomagnetic sensor algorithms 45, 46, 47 'in detail. Particularly, 62' creates the data table 64 'by storing the data of the geomagnetic sensor as 10 continuous acquisition functions and generates the data table. This is for comparison, and it is an algorithm for extracting the optimum azimuth value from hunting 'phenomenon of geomagnetic sensor azimuth due to ship shaking. According to Fig. 7, an optimal adaptive control scheme in which the data obtained from the obtained ten data tables 62, 63, and 64 'are compared with the current room position, is retrieved (67') and output (68 ') the data having the minimum change amount. It can be seen that the algorithm of.

<GPS receiver1>

The GPS receiver described above may include a GPS receiver 1. 8 to 13, the GPS receiver of the present invention is composed of a casing 3, a display window 5, and a circuit board 7, as indicated by reference numeral 1 in FIGS. 8 to 7. In the casing (3) is a part forming the outer body of the GPS receiver (1), which is generally in the form of a wide box like a typical GPS receiver in the prior art, and the front opening (4) into which the display window (5) is fitted. All sides are surrounded by a single body. Therefore, the casing 3 can be cast separately by one mold. In addition, the display window 5 coupled to the opening portion 4 on the front side of the casing 3 is translucent to display various character information displayed on the display panel 17 mounted on the front surface of the circuit board 7 to the driver. It is made of a material such as plastic.

In addition, the circuit board 7 mounted inside the bodies 3-1 and 3-2 of the casing 3 includes the display panel 17 and the planar antenna 11 for receiving external satellite signals. Although not shown, a plurality of elements such as a GPS module, a controller, a memory, and the like are mounted, and the volume control switch 27 and the power adapter 29 protrude from side to side as shown in FIGS. 8 to 7. . In particular, the body of the GPS receiver (1) casing (3) according to the present invention has a flat form, which is divided into two stages of the main body (3-1) and the expansion (3-2) as shown, The main body 3-1 occupies most of the casing 3, and therefore various components such as a circuit board 7 are inserted into the casing 3 from the opening 4. On the other hand, the front expansion portion (3-2) is the volume control switch 27 and the power adapter protruding to the left and right of the circuit board 7 in the circuit board 7 is inserted into the main body portion 3-1 as described above The width 29 is wider than that of the main body 3-1 so that the 29 is not caught by the left and right wall surfaces of the casing 3 opening 4. In addition, the expanded portion 3-2 having a relatively wide width as described above is connected to the tip of the main body portion 3-1 through the inclined surface 30 inclined at a gentle angle. In addition, the volume control switch slot 31 and the power adapter insertion hole 33 are cut out on both inclined surfaces 30 forming the boundary between the extension part 3-2 and the main body part 3-1. 31, the volume control switch 27 as shown in Figs. 9, 10 and 13, and the power adapter 29 in the insertion hole 33 as shown in Figs. 9 and 11 out of the casing (3). Exposed At this time, the power adapter 29 is preferably inclined at the same angle as the inclined surface 30 as shown so that the exposed portion does not protrude to the outside to make an edge. In addition, fixing the circuit board 7 inserted into the casing 3 through the opening portion 4, as shown in FIGS. 8 to 10, behind the inner circumferential surface of the main body portion 3-1 of the casing 3. A pair of fixing slots 21 for protruding from the left and right side walls, respectively. As the pair of fixed slots 21 are shown in detail in FIG. 10, the tip portion into which the circuit board 7 is inserted is slightly spaced apart from the thickness of the circuit board 7 so that the circuit board 7 is easily guided. have. On the other hand, the rear end portion into which the circuit board 7 is fitted is slightly narrower than the thickness of the circuit board 7 so that the circuit board 7 is not pushed in and pulled out. Therefore, since the fixed slot 21 has a tapered shape in which the slot spacing is narrowed toward the back as a whole, the insertion of the circuit board 7 is easy and the removal is difficult.

In addition, the fixed slot 21 may be applied to the left and right taper selectively or in combination with the above-mentioned vertical taper as shown in FIGS. 9 and 12. In other words, the fixed slot 21 is tapered so that the bottom surface 23 becomes higher toward the back, that is, the gap between the bottom surface 23 of the left and right fixed slots 21 becomes narrower toward the back as shown in FIG. 9. The circuit board 7 is gradually pressed from the left and the right, and is firmly fixed at the end. Now, the operation of the GPS receiver 1 having an integrated casing according to the present invention configured as described above is as follows. In the GPS receiver 1 of the present invention, as shown in Figs. 8 to 12, the casing 3 forming the body is integrally cast by one mold. Therefore, the casing 3 is open at its front by the opening portion 4, so that various components such as the circuit board 7 can be inserted therein.

At this time, since the opening part 4 of the front end of the casing 3 is enlarged left and right as the expansion part 3-2, the circuit board 7 has a volume control switch 27 and a power adapter 29 protruding from side to side. Can be inserted into the casing 3 without catching the edge of the opening 4. The inserted circuit board 7 is press-fitted into the fixing slot 21 protruding from the inner circumferential surface of the left and right walls so as to be fixed in the casing main body 3-1. At the same time, the volume control switch 27 is inserted into the slot 31 and the power adapter 29 is inserted into the insertion hole 33, respectively, and is exposed out of the casing 3. When the circuit board 7 is inserted into the casing 3 in this manner, the display window 5 is placed over the casing 3 opening 4 where the display panel 17 on the front surface of the circuit board 7 is finally exposed. This insertion completes the assembly of the GPS receiver 1 as shown in FIG.

<GPS Receiver2>

Hereinafter, a GPS receiver according to another embodiment based on a configuration similar to that of the GPS receiver according to an embodiment of the present invention described above will be described.

14 illustrates a GPS receiver according to another embodiment of the present invention. 15 to 25 are views showing the components according to FIG. 14. 14 to 25, the GPS receiver 11 ′ including the GPS receiver 1 includes a geomagnetic sensor unit 12 ′ for measuring a deviation angle from the magnetic north of the earth; A comparison analyzer (13 ') for measuring azimuth using a position repeatedly measured from the GPS receiver (11'), and comparing and analyzing azimuth data from the geomagnetic sensor (12 '); A controller 14 'which drives a display device as an output of the comparison analyzer 13' or configures and controls a signal path interworking with other devices in the ship; And a means configured by organically connecting the GPS receiver 11 ', the geomagnetic sensor unit 12', the comparison analyzer 13 ', the controller 14' and the display unit, and the GPS receiver 1 includes: A casing (3), a display window (5) coupled to the opening (4) in front of the casing (3), and a circuit board (7) mounted inside the casing (3), wherein the casing (3) is A pair of fixing slots 21 are formed on the left and right inner surfaces of the main body 3-1 to which the circuit board 7 is press-fitted. The fixing slot 21 includes an upper plate portion 21a and a lower plate portion 21b, and the circuit board 7 includes a first conveying member 111 provided in the lower plate portion 21b and the upper plate portion ( It is transferred to the inside through a conveying unit 110 including a second conveying body 112 provided in the 21a, the lower plate portion 21b, the end of the circuit board conveyed through the conveying unit 110 is seated A seating part 120 including a first sensing part 121 for detecting whether the circuit board 7 is seated is provided. The seating unit (120) is PS information and geomagnetic sensor orientation data acquisition device that can be retracted into and out of the lower plate (21b).

The lower plate portion 21b is provided with a first pressing module 130 protruding upward to press the circuit board based on the seating of the circuit board 7 of the first sensing unit 121. The upper plate portion 21a is provided with a second pressing module 140 which protrudes downward to press the circuit board based on the seating of the circuit board 7 of the first sensing unit 121. (7), the first pressing is supported by the first pressing module 130, the second pressing by the second pressing module 140, the second pressing by the conveying unit 110 after the second pressing. The grip is held in a constant direction in the reverse feeding direction so that tension is generated. The first pressurizing module 130 is provided with a first-first pressurizing member 131 having a first thickness of a pin shape that is bound to a fitting groove formed in the circuit board, and the second pressurizing module 140 is provided. The 2-1 press body 141 which has the pin-shaped 1st thickness which is bound to the fitting groove | channel previously formed in the said circuit board is provided, The said circuit board 7 is a said 1-1 press body ( 131 and the 2-1 pressurizing body (141) are pulled in the reverse input direction by the transfer part (110) while being primarily bound to the circuit board (7). The first pressurizing module 130 may include a 1-2 pressurizing member 132 having a second thickness that is bound to a fitting groove previously formed in the circuit board 7 through the first protrusion 132a formed at an upper portion thereof. It is provided, the second pressing module 140, the 2-2 pressing body having a second thickness that is bound to the fitting groove formed in the circuit board 7 through the second protrusion 142a formed in the lower ( 142 is provided, and the circuit board 7 includes the first-second press body 132 and the second-second press body 142 secondarily bound to the circuit board 7. It is pulled in the reverse feeding direction by the transfer unit 110.

The first pressing module 130 has a third thickness 133 having a third thickness that is bound to a fitting groove formed in the circuit board 7 through the plurality of third protrusions 133a formed thereon. ) Is provided, and the second pressurizing module 140 has a third thickness having a third thickness that is bound to a fitting groove formed in the circuit board 7 through a plurality of fourth protrusions 143a formed at a lower portion thereof. The pressurizing member 143 is provided, and the circuit board 7 has the first-third pressing body 133 and the second-third pressing body 143 third-bound to the circuit board 7. While being pulled, the transfer part 110 is pulled in the reverse feeding direction. The second thickness is thicker than the first thickness and the third thickness is thicker than the second thickness.

The first-third pressing body 133 is provided so that the third protrusion 133a can move forward and backward, and is bound to press one side of the 1-2-th pressing body 132, but the first protrusion 132a is provided. Pressurizes in a state in which it is bound to the circuit board, and the second-third pressing body 143 is provided so that the fourth protrusion 143a can move forward and backward, so that one side of the second-two pressing body 142 is opened. It is bound to pressurize, and pressurizes in the state in which the 2nd protrusion part 142a is bound to the said circuit board. When the upper plate portion 21a is seated on the seating portion 120, the upper plate portion 21a pressurizes an upper portion of the seated circuit board 7 so that the circuit board 7 is separated from the seating portion 120 and the position is deformed. Departure prevention unit 150 for preventing the is provided. (The detachment preventing part 150 may be moved in and out of the upper plate part 21a. The main body part 3-1 includes an upper limiting module 160 for limiting the flow of the upper plate part 21a. A lower limiting module 170 is provided for limiting the flow of the lower plate portion 21b, and the upper limiting module 160 has a vertical structure in the form of a vertical structure that restricts the forward operation of the upper plate portion through a certain range of flow. An upper limiting portion 161 and a second upper limiting portion 162 in a horizontal structure form interlocked with the first upper limiting portion 161 to limit the lowering operation of the upper plate portion 21a, the lower limiting Module 170 is

Lowering the upper plate portion 21a in conjunction with the first lower limit portion 171 and the first lower limit portion 171 of the vertical structure to limit the forward operation of the lower plate portion 21b through a certain range of flow. The second lower limit portion 172 in the form of a horizontal structure restricting the operation is provided.

The first upper limiting portion 161 is provided with a first linking portion 163 having a lower end in a triangular shape with the hypotenuse portion HY1 facing the upper plate portion direction, and the second upper limiting portion 162 includes: One side is interlocked with the first linking unit 163 and flows, and the first lower limiting unit 171 is

A second interlocking portion 173 having an upper end in a triangular shape and having a hypotenuse portion HY2 facing the lower plate portion side is provided, and one side of the second lower limiting portion 172 is the second interlocking portion 173. It is linked to and flows. The second upper limiting part 162 is operated to move up and down along the hypotenuse part HY1 of the first interlocking part 163, and the second lower limiting part 172 is one of the second lower limiting part 172. It is operated to move up and down along the hypotenuse portion HY2 of the linkage portion 173. The first linkage part 163 rotates the second linkage part at least symmetrically through the circumferential rotation in the first upward limiting part 161, and the second linkage part 173 is the third limiting part. The fourth linkage is rotated at least symmetrically through the circumferential rotation at (). The casing 3 is provided with a main body portion 3-1 and an expansion portion 3-2, and the main body portion 3-1 and the expansion portion 3-2 are detached from each other by the binding means 180. Bind so as to be possible, the binding means 180, the first binding member 181 provided on the main body portion 3-1 side and the second binding member provided on the expansion unit (3-2) side ( 182, the first binding body 181 is provided with a first magnetic generator 181a, and the second binding body 182 is provided with a second magnetic generator 182a. When the portion 3-1 and the expansion portion 3-2 are coupled to each other, the first magnetic generation portion 181a and the second magnetic generation portion 182a are coupled to each other to generate a pulling force. When the main body portion 3-1 and the expansion portion 3-2 are separated from each other, the first magnetic generating portion 181a and the second magnetic generating portion 182a are mutually pushing force. It is operated in disconnected mode to generate.

The first binding body 181 converts the polarity of the first magnetic generator 181a based on a finger touch, and the second magnetic generator 182a based on a finger touch on the second binding body 182. ) Change the polarity. The main body 3-1 is provided with a detachable history generating module 190 for generating detachment history information by detecting separation and coupling of the first binding body 181 and the second binding body 182. The detachable history generating module 190 may include a first-first detachable history generating unit 1911 provided on an upper surface of the main body unit 3-1, and an upper surface of the expansion unit 3-2. A first detachable history generating unit 191 including a 1-2 detachable history generating unit 1912 provided to correspond to a −1 detachable history generating unit 1911, and a side surface of the main body unit 3-1. The 2-1 detachable history generating unit 1921 provided and the 2-2 detachable history generating unit provided to correspond to the 2-1 detachable history generating unit 1921 on the side of the expansion unit 3-2. A second detachable history generating unit 192 including a unit 1922 is provided.

Defense data acquisition system

The azimuth data acquisition system includes a GPS receiver 11 'like the tactic bar; A geomagnetic sensor unit 12 'for measuring a deviation angle from the magnetic north of the earth; A comparison analyzer (13 ') for measuring azimuth using the position measured from the GPS receiver (11') and comparing and analyzing azimuth data from the geomagnetic sensor (12 '); A controller 14 'which drives a display device as an output of the comparison analyzer 13' or configures and controls a signal path interworking with other devices in the ship; And a means configured by organically connecting the GPS receiver 11 ', the geomagnetic sensor unit 12', the comparison analyzer 13 ', the controller 14' and the display unit, and the GPS receiver 11 ' Includes a GPS receiver (1), the GPS receiver (1) is mounted inside the casing (3), the display (5) coupled to the opening (4) in front of the casing (3), the casing (3) And a casing (3), wherein the casing (3) has a pair of fixing slots (21) in which the circuit board (7) is press-fitted and fixed to left and right inner surfaces of the main body (3-1), respectively. The fixed slot 21 includes an upper plate portion 21a and a lower plate portion 21b, and the circuit board 7 includes a first transfer member 111 provided in the lower plate portion 21b, and It is conveyed to the inside through a conveying unit 110 including a second conveying body 112 provided in the upper plate portion 21a, the lower plate portion 21b, the end of the circuit board conveyed through the conveying portion 110 Fall The seating part 120 is provided with a first sensing part 121 for detecting whether the circuit board 7 is seated, and the seating part 120 is inside the lower plate part 21b. You can move in and out.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1: GPS receiver
3: casing
5: display window
7: circuit board
11: flat antenna
21: fixed slot

Claims (6)

As a direction data acquisition device,
A GPS receiver 11 '; Geomagnetic sensor unit 12 '; It includes a comparison analysis unit 13 'for measuring the orientation by using the position repeatedly measured from the GPS receiver 11', and comparatively analyzes the orientation data from the geomagnetic sensor unit 12 ',
The GPS receiver 11 ′ includes a GPS receiver 1, the GPS receiver 1 having a casing 3, a display window 5 coupled to an opening 4 in front of the casing 3, and A circuit board 7 mounted inside the casing 3,
The casing 3 has a pair of fixing slots 21 in which the circuit board 7 is press-fitted and fixed to left and right inner surfaces of the main body 3-1, respectively.
The fixed slot 21 includes an upper plate portion 21a and a lower plate portion 21b,
The circuit board 7 has an interior through a transfer part 110 including a first transfer body 111 provided on the lower plate portion 21b and a second transfer body 112 provided on the upper plate portion 21a. Will be transferred to
The lower plate portion 21b has an end portion of the circuit board conveyed through the transfer portion 110, and has a first sensing portion 121 for detecting whether the circuit board 7 is seated. The seating unit 120 is provided,
The lower plate portion 21b is provided with a first pressing module 130 that protrudes upward based on the seating of the circuit board 7 of the first sensing unit 121 to pressurize the circuit board.
The upper plate portion 21a is provided with a second pressing module 140 which protrudes downward based on the seating of the circuit board 7 of the first sensing unit 121 to press the circuit board.
The circuit board 7 is first pressurized by the first pressurizing module 130 and then supported by the second pressurizing module 140 and then pressurized by the second pressurizing module 140. Tension is generated by constantly pulling in the reverse input direction while being held by
The first pressurizing module 130,
A first-first press body 131 having a first thickness of a pin shape that is bound to a fitting groove previously formed in the circuit board is provided.
The second pressure module 140,
A second-first press body 141 having a first thickness of a pin shape that is bound to a fitting groove previously formed in the circuit board is provided.
The circuit board 7,
Azimuth data that is pulled in the reverse input direction by the transfer part 110 while the first-first press body 131 and the second-first press body 141 are primarily bound to the circuit board 7. Acquisition device. delete delete The method according to claim 1,
The first pressurizing module 130,
A first-second pressing body 132 having a second thickness that is bound to the fitting grooves previously formed in the circuit board 7 is provided through the first protrusion 132a formed at an upper portion thereof.
The second pressure module 140,
A second-2 press body 142 having a second thickness that is bound to a fitting groove previously formed in the circuit board 7 is provided through the second protrusion 142a formed at a lower portion thereof.
The circuit board 7,
Azimuth data pulled in the reverse input direction by the transfer part 110 while the 1-2 pressurizing member 132 and the 2-2 pressurizing member 142 are secondarily bound to the circuit board 7. Acquisition device. delete delete

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