CN2424448Y - Electronic course recorder - Google Patents

Abstract

The utility model relates to an electronic course recorder, which is an instrument used for recording ship's course. The shell and the panel of a main controller are provided with a liquid-crystal display, a keyboard, an external power supply plug, an external connection signal plug, and a printer plug. The utility model is characterized in that a power supply module, and a drive circuit board, an A/D converting module board and a main control circuit board of the liquid crystal display are arranged in the shell of the master controller. The utility model has the advantages that the complete machine has no mechanical driving component and the mechanical rotating component, and therefore, the failure rate is low, and the reliability is enhanced; the course display precision and the course display visual are largely enhanced, and the data retention time is increased, which is convenient for preservation, enquiry, transmission and application of the course data.

Description

The electronics course recorder

The utility model relates to a kind of instrument that is used to write down ship course, is a kind of electronics course recorder specifically.

At present, the sensing instrument of big-and-middle-sized apparel mainly is a gyrocompass, and its course data pen recorder mainly is a mechanical type papery register, its major defect is that the reading failure rate is higher, the reading intuitive is poor, preserves and consult inconvenience, is difficult to satisfy actual needs.

The novel purpose of this use is to overcome the shortcoming in the above-mentioned technology, proposes a kind of electronics course recorder and replaces machanical recorder, makes that it reaches that memory space is big, reliable operation, reading are directly perceived, preservation and reference convenient.

The purpose of this utility model is realized by following technical scheme: this electronics course recorder, on the shell of master controller and panel, LCD is housed, keyboard, it is characterized in that external power supply plug is connected with external power supply, the outer signal plug is connected with the gyrocompass course transmitter, and the printer plug connects printer, in the master controller shell power module is housed, the driver circuit plate of LCD, AD modular converter plate and master control circuit plate.

On the wiring board in the master controller shell program storage U3 is housed, data-carrier store U4 links to each other with microprocessor U1 by latch U2, electric board storer U5 is through latch U14, U13 links to each other with microprocessor U1, the X1 of crystal oscillating circuit and microprocessor U1, the X2 end is connected, reset circuit links to each other with the RESET end of microprocessor U1 through negative circuit U13, the P1 mouth of microprocessor U1 links to each other with keyboard interface SW0-SW7 by single resistor chain RP1, LCD is by latch U9, U8, U7 is connected with microprocessor U1, A/D translation interface CZ7 is by latch U10, U11, U13 links to each other with microprocessor U1, printer interface CZ8 is by latch U15, U16, U13 links to each other with microprocessor U1, the RXD of serial communication interface U6 and microprocessor, the TXD end links to each other, the INT1 end of clock circuit U17 and microprocessor, the TO end, the TI end links to each other.Crystal oscillating circuit is made up of capacitor C 2, C3 and crystal oscillator Y1, is connected with X1, the X2 end of microprocessor U1.Reset circuit is made up of capacitor C 1, resistance R 1, is connected with the RESET end of microprocessor U1.Single resistor chain RP1 and switch SW 0-SW7 composition matrix keyboard link to each other with the P10-P17 pin of the P1 mouth of the U1 of microprocessor.LCD is the lattice lcd module, carries out address strobe by U7, U8, U9, can latch address or the data that make liquid crystal work effectively.With microprocessor U1 /RD ,/WR end links to each other with the D0-D7 data terminal.The A/D modular converter is converted into digital course signal with the course simulating signal of gyrocompass course transmitter output.Link to each other with the D0-D7 data terminal of microprocessor U1 by latch U10, U11, U13.Serial interface circuit is made up of U6, resistance R 3, R4, R5, will be converted to 422 interface standard forms from the Transistor-Transistor Logic level of U1.The IN of U6 holds and the OUT end links to each other with RXD, the TXD end of microprocessor U1 respectively, and IN+ holds, IN-holds, OUT-holds, the OUT+ end links to each other with RD+, RD-, TD-, the TD+ end of serial port socket CZ6 respectively.

The course sample conversion principle of work of electronics course recorder is: three-phase ac signal S1, S2, the S3 of angle reflected in negate on the selsyn of course repeater, sends into the AD switching controller.For making AD switching controller energy operate as normal, need add excited signal.In order accurately to read the AD conversion value of angle, output terminal in AD converter has installed ternary latch 74LS173 additional, like this when the BUSY of enable signal and AD signal is added on ternary latch 74LS173, the AD value can be latched in wherein, can read stable AD output valve with the assurance microprocessor, not influence the angle variation that the AD device is followed the tracks of selsyn simultaneously again.

Its course data storage principle of work is: owing to adopted jumbo electric board storer, approximately can preserve boats and ships one month course data of navigation continuously.Finishing a valid data formats stored is: date, Hour Minute Second, course value are respectively three bytes.In the storage data procedures, taked data compression calculating to a certain extent, more efficient use effective storage space of electric board, improved the quantity of data storage relatively.

The course curve display has adopted low precision 360 degree full screen displays and high-precision local to show way of combining, utilize page turning technology on the time shaft again, make the course change curve to show in real time with screen in 360 degree scopes, again can be among a small circle show during high-precision real, can also page turning forward on time shaft, the course change curve on the other times section is checked in playback.

The utility model advantage is: owing to adopted advanced microelectronics, computer technology, make its function and technical indicator increase substantially, complete machine does not have mechanical transmission and rotatable parts, and failure rate is low, has improved reliability greatly; Course display precision and intuitive all increase substantially, and display precision can reach 0.1 degree with the preservation precision in real time; In real time the demonstration time, be accurate to second; Increased the data holding time, can 10 years after the electronic magnetic disc outage obliterated data not; This electronics course recorder is convenient to be communicated with other digitizer instrument combination, has made things convenient for further preservation, inquiry, transmission and the application of course data.

Embodiment of accompanying drawings:

Fig. 1 is a kind of electronics course recorder stereographic map,

Fig. 2 is its cut-away view,

Fig. 3, Fig. 4, Fig. 5 are circuit diagrams,

This electronics course recorder, on the shell 2 of master controller and panel 1, LCD 3 is housed, keyboard 4, external power supply plug 5 is connected with external power supply, outer signal plug 6 is connected with the gyrocompass course transmitter, and printer plug 7 connects printer 8, and power module 12 is housed in master controller shell 2, the driver circuit plate 9 of LCD, AD modular converter plate 10 and master control circuit plate 11.Microprocessor U1 is housed on the master control circuit plate 11, link to each other with program storage U3, data-carrier store U4 by latch U2, electric board storer U5 links to each other with U1 through latch U14, U13, LCD MODULE links to each other with microprocessor U1 by latch U7, U8, U9, the A/D modular converter links to each other with microprocessor U1 by latch U15, U16, U13, serial communication interface U6 links to each other with RXD, the TXD end of microprocessor U1, the INT1 of clock circuit U17 and microprocessor U1, T0, T1 end links to each other.Various circuit elements device list selected in the present embodiment are as follows:

Item	Title and model	Quantity	Remarks
				U1	8031	1
U2	74ALS573	1
				U3	EPROM27C51 2	1
U4	RAM6264		1
				U5	HK1275	1
U6	MAX488	1
				U7、U13	GAL16V8	2
U8、U9、U10、U11、U16	74LS245	5
				U12、U14、U15	74ALS574	3
U17	DS1302	1
				Y1	Crystal oscillator 11.0592MHz	1
Y2	Crystal oscillator 32768Hz	1
				R1、R2	Resistance 10k	2
R3	Resistance 120	1
				R4、R5	Resistance 1k	2
R5	Resistance 1k		1
				C1、C4	Electric capacity 10 μ f	2
C2、C3	Electric capacity 30pf	2
				C5-C20	Electric capacity 0.47 μ f	16
CZ5	LCD MODULE		1
				CZ7	A/D：12ZSZ/XSZ-01	1
CZ8	Printer: μ P-40	1

Claims (2)

1, a kind of electronics course recorder, on the shell of master controller and panel, LCD is housed, keyboard, it is characterized in that external power supply plug is connected with external power supply, the outer signal plug is connected with the gyrocompass course transmitter, and the printer plug connects printer, in the master controller shell power module is housed, the driver circuit plate of LCD, AD modular converter plate and master control circuit plate.

2, according to the described electronics course recorder of claim 1, it is characterized in that on the wiring board in the master controller shell program storage U3 being housed, data-carrier store U4 links to each other with microprocessor U1 by latch U2, electric board storer U5 is through latch U14, U13 links to each other with microprocessor U1, the X1 of crystal oscillating circuit and microprocessor U1, the X2 end is connected, reset circuit links to each other with the RESET end of microprocessor U1 through negative circuit U13, the P1 mouth of microprocessor U1 links to each other with keyboard interface SW0-SW7 by single resistor chain RP1, LCD is by latch U9, U8, U7 is connected with microprocessor U1, A/D translation interface CZ7 is by latch U10, U11, U13 links to each other with microprocessor U1, printer interface CZ8 is by latch U15, U16, U13 links to each other with microprocessor U1, the RXD of serial communication interface U6 and microprocessor, the TXD end links to each other, the INT1 end of clock circuit U17 and microprocessor, the TO end, the T1 end links to each other.

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