CN202256548U - Line breaking detection device of remote control equipment for ship - Google Patents
Line breaking detection device of remote control equipment for ship Download PDFInfo
- Publication number
- CN202256548U CN202256548U CN2011202781036U CN201120278103U CN202256548U CN 202256548 U CN202256548 U CN 202256548U CN 2011202781036 U CN2011202781036 U CN 2011202781036U CN 201120278103 U CN201120278103 U CN 201120278103U CN 202256548 U CN202256548 U CN 202256548U
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- control equipment
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Abstract
The utility model discloses a line breaking detection device of remote control equipment for a ship, which comprises a contact of a remote command terminal and a relay, which are connected in a direct-current control system in series. The line breaking detection device of the remote control equipment for the ship also comprises a resistor, a voltage comparator and a contact of a system detection mechanism; the resistor is connected to the contact of the remote command terminal in parallel; the contacts of the voltage comparator and the system detection mechanism are both connected to the direct-current control system; the voltage of the relay is detected by one end of the voltage comparator, the preset voltage with a fixed value is detected by the other end, and the voltage with the fixed value is not 0v; and the voltage comparator is connected with the contact of the system detection mechanism. The line breaking detection device of the remote control equipment for the ship, which is disclosed by the utility model, has the obvious advantages that the detection cost is lowered, the operation difficulty is relieved, a line fault can be detected in time, and the requirements of easiness in installation and easiness in operation of traditional equipment can be met, so that the safety of shipmen and equipment is effectively ensured. The line breaking detection device of the remote control equipment for the ship has very good practicability, and very good economic benefit and social benefit can be generated.
Description
Technical field
The utility model relates to a kind of disconnected cable pick-up unit of straight-flow system relay control circuit cable that is applied to; Be specifically related to a kind of broken thread detector of boats and ships remote control equipment, have corresponding alerting signal when line fault that reasons such as, damaged by rats loosening by broken string, cable splice cause occurring when the control circuit that uses this device and provide.
Background technology
The most existing electric-control system; Have the control of machine control and remote control two places; This wherein uses the most extensive with relay; When the circuit between control contact and the relay connects (especially long-range contact) and fault such as loose contact or broken string occurs, the situation of pilot relay akinesia will appear, and this danger will make the safety of all told and equipment be on the hazard.For safety guarantee; Just need detect broken string; Existing wire break detection method becomes the Circuit Retrofit of switching value the loop of analog quantity often, passes through analog to digital conversion then, when detected value is lower than the minimum of some normal conditions, thinks to occur disconnection fault.This detection method operation inconvenience, selling at exorbitant prices can not be satisfied existing equipment and be prone to install requirement easy to operate.
Summary of the invention
Goal of the invention: to the deficiency that exists in the prior art; The purpose of the utility model provides a kind of broken thread detector of boats and ships remote control equipment; When line fault that reasons such as, damaged by rats loosening by broken string, cable splice cause occurring when the control circuit that uses this device; Detect in time, have corresponding alerting signal simultaneously and provide.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is:
A kind of broken thread detector of boats and ships remote control equipment comprises that the distant place that is connected in the DC control system is executed to make terminal contacts and relay, also comprises resistance, voltage comparator and system testing agency contact; Said resistance is connected in parallel on to execute at a distance and makes on the terminal contacts; Said voltage comparator and system testing agency contact all are connected DC control system; Said voltage comparator one end detects relay voltage, and the other end detects preset fixed value voltage, and said fixed value voltage is not 0v; Said voltage comparator links to each other with system testing agency contact.
Said resistance is: execute a long way off when making terminal contacts break off, resistance is connected with the coil of relay, and branch goes series loop>80% voltage, get part voltage though let relay be in, because of making coil, undertension is in the state of not adhesive.
The resistance of said resistance is 4700 Ω.
In view of relay is higher than 80% rated voltage must adhesive; Be lower than the characteristic that 20% rated voltage must discharge; The utility model is based on the wire break detection method that voltage ratio being applied to adopted the control relay circuit of dc coil, and this programme improves the reliability of system under the situation of not changing original circuit.
Beneficial effect: compare with wire break detection method of the prior art; The remarkable advantage that the broken thread detector of the boats and ships remote control equipment of the utility model has is: reduced the detection cost, alleviated the difficulty of operation, can detect line fault timely; Can satisfy existing equipment and be prone to install requirement easy to operate; Make the safety of crewman and equipment obtain effective guarantee, have good practicability, can produce good economic benefits and social benefit.
Description of drawings
Fig. 1 is the structural representation of the broken thread detector of boats and ships remote control equipment.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, the broken thread detector of boats and ships remote control equipment is executed far-end attachment device, detection loop and the output isolated loop that makes terminal contacts 1, resistance 2, relay 3, voltage comparator 4 and system testing agency contact 5 and each connection line form by the distant place that is connected in the DC control system.The far-end attachment device is meant to be installed at a distance executes the part that makes on the terminal contacts 1, for example: the limit switch of button, switching value and other switching value contacts etc.Whether the detection loop is lower than some normal values through the voltage on the detection relay coil is accomplished monitoring, through output isolation circuit status information is flowed to external unit.
Voltage comparator 4 links to each other with system testing agency contact 5, and voltage comparator 4 one ends detect relay 3 voltages, and the other end detects the fixed value voltage of presetting (greater than the small voltage value of 0v); Cable just often, relay coil powers on and is pressed in the scope work that is not less than this value, is 100% control voltage because execute at a distance the voltage on relay 3 coils when making contact 1 closed; When cable the end of a thread becomes flexible or open failure occurs; Voltage is 0V on relay 3 coils, must be lower than the small voltage value that configures, and voltage comparator 4 outputs change; Control detection mechanism contacts 5 realizes in time detecting broken string with fault output.
The broken thread detector of the boats and ships remote control equipment of the utility model; Reduce the detection cost, alleviated the difficulty of operation, can detect line fault timely; Can satisfy existing equipment and be prone to install requirement easy to operate; Make the safety of crewman and equipment obtain effective guarantee, have good practicability, can produce good economic benefits and social benefit.
Claims (3)
1. the broken thread detector of a boats and ships remote control equipment comprises that the distant place that is connected in the DC control system is executed to make terminal contacts (1) and relay (3), it is characterized in that: also comprise resistance (2), voltage comparator (4) and system testing agency contact (5); Said resistance (2) is connected in parallel on to execute at a distance and makes on the terminal contacts (1); Said voltage comparator (4) and system testing agency contact (5) all are connected DC control system; Said voltage comparator (4) one ends detect relay (3) voltage, and the other end detects preset fixed value voltage, and said fixed value voltage is not 0v; Said voltage comparator (4) links to each other with system testing agency contact (5).
2. the broken thread detector of boats and ships remote control equipment according to claim 1; It is characterized in that: said resistance (2) is: execute a long way off when making terminal contacts (1) break off; Resistance (2) is connected with the coil (3) of relay; And divide and to go series loop 80% voltage, get part voltage though let relay be in, because of making coil, undertension is in the state of not adhesive.
3. the broken thread detector of boats and ships remote control equipment according to claim 1 is characterized in that: the resistance of said resistance (2) is 4700 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202781036U CN202256548U (en) | 2011-08-02 | 2011-08-02 | Line breaking detection device of remote control equipment for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202781036U CN202256548U (en) | 2011-08-02 | 2011-08-02 | Line breaking detection device of remote control equipment for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256548U true CN202256548U (en) | 2012-05-30 |
Family
ID=46117767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202781036U Expired - Fee Related CN202256548U (en) | 2011-08-02 | 2011-08-02 | Line breaking detection device of remote control equipment for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958141A (en) * | 2018-05-02 | 2018-12-07 | 李献云 | Digital input circuit broken string real-time detection method and circuit |
-
2011
- 2011-08-02 CN CN2011202781036U patent/CN202256548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958141A (en) * | 2018-05-02 | 2018-12-07 | 李献云 | Digital input circuit broken string real-time detection method and circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |