CN101765278B - Power-frequency digital frequency-division transmission method and device of monitoring device of navigational light - Google Patents
Power-frequency digital frequency-division transmission method and device of monitoring device of navigational light Download PDFInfo
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- CN101765278B CN101765278B CN2008101876065A CN200810187606A CN101765278B CN 101765278 B CN101765278 B CN 101765278B CN 2008101876065 A CN2008101876065 A CN 2008101876065A CN 200810187606 A CN200810187606 A CN 200810187606A CN 101765278 B CN101765278 B CN 101765278B
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Abstract
The invention relates to an automatic control technology, in particular to power-frequency digital frequency-division transmission method of a monitoring device of a navigational light. The power-frequency digital frequency-division transmission method of the monitoring device of the navigational light, which is designed by the invention, comprises the following steps of: by virtue of the inherent characteristics of an original power supply network of a constant-current dimmer, wherein the inherent characteristics comprise the synchronous characteristic and the constant-current characteristic of a series loop and the equivalent principle characteristic of an isolation transformer, realizing the two-way transmission of a signal by adopting the technologies of power synchronization, time-domain address coding and chopping, converting a transmitted analog signal into a 0/1 switching-on/switching-off numerical code corresponding to a power frequency of 50Hz and then decoding and confirming by adopting a multi-path re-counting circuit with different frequency-division numerical values, thereby finishing the two-way transmission of a multi-path signal so as to realize the fault detection display and the single-light control of the navigational light. In the two-way transmission of the multi-path signal, the reduction or the expansion of the number of the paths of the multi-path signal is determined according to the on-site actual demand and the opinion of a user, and the frequency-division numerical values also adopt the corresponding natural numbers.
Description
Technical field
The present invention relates to automatic control technology, particularly a kind of power-frequency digital frequency-division transmission method of aid-to-navigation light supervising device.
Background technology
According to International Civil Aviation Organization's specification requirement relevant to aid-to-navigation light: aid-to-navigation light is the industrial frequency AC supply power mode, namely conspire to create the high pressure primary circuit by dimmer power output constant current (the bright level of light is determined by electric current 2.8A～6.6A minute Pyatyi) connection via a plurality of isolating transformers former limits, lighted for aid-to-navigation light by the secondary circuit of the secondary of isolating transformer.Along with the develop rapidly of China civil aviaton cause, the airport has related to upgrading to the airport classification to the sense of urgency of implementing International Civil Aviation Covenant " annex 14 aid-to-navigation light serviceability rate standards " and " senior land operations guiding " aid-to-navigation light being controlled functional requirement.The airport user has proposed specific requirement to the aid-to-navigation light monitoring function: as the caution of aid-to-navigation light wick open fault, secondary line short trouble, lamp hole water inlet fault, and the taxiway center line light packet segmentation is controlled (and then green light is walked), is stopped the control of bank light etc., number of channels in various functions expansion requirement need increase aid-to-navigation light dimmer loop, everything all awaits us and goes R and D.
Summary of the invention
The objective of the invention is to provide for the deficiency that solves above-mentioned technology a kind of reliability and expanded function requirement that detects and control the lamp position that be intended to improve, show and single lamp is controlled and power-frequency digital frequency-division transmission method and the device of the aid-to-navigation light supervising device that multichannel bidirectional transmits with the fault detect that realizes aid-to-navigation light.
in order to achieve the above object, the power-frequency digital frequency-division transmission method of a kind of aid-to-navigation light supervising device that the present invention is designed, it comprises the inherent characteristic by the former supply network of constant-current dimmer: the series loop synchronizing characteristics, constant-current characteristics, isolating transformer principle of equal effects characteristic, the employing power supply is synchronous, time domain geocoding and wave chopping technology, realize the transmitted in both directions of signal, be 0/1 break-make number of corresponding 50HZ power frequency with the analog signal conversion of transmission, and then the multichannel that adopts different frequency division numerical value again the counting circuit decoding confirm, thereby complete the transmitted in both directions of multiple signals and then realize that the fault detect of aid-to-navigation light shows and the control of single lamp.In the transmitted in both directions of described multiple signals, the minimizing of its number of channels or expansion are definite according to actual demand and the consumers' opinions at scene, and frequency division numerical value also adopts corresponding natural number.
The transmitted in both directions of described multiple signals can be to adopt the bidirectional transmission method of four road signals especially, and frequency division numerical value adopts 4 frequency divisions, 5 frequency divisions, 7 frequency divisions, 9 frequency divisions.
The power-frequency digital frequency-division transmitting device of a kind of aid-to-navigation light supervising device of the present invention design, it comprises master computer, lamp position watch-dog, multichannel dimmer, the monitor loop series connection master computer of multichannel dimmer is monitored the multichannel dimmer in real time.The working power of described lamp position watch-dog has two kinds of supply power modes; Power supply is taken from the output AB point of isolating transformer when aid-to-navigation light is opened a way, and is that aid-to-navigation light when normal operation power supply is provided by transformer under normal conditions.
The input input counting pulse signal of described lamp position watch-dog, counting pulse signal is taken from the output AB point of isolating transformer or the output CD point of transformer, when opening a way, takes from aid-to-navigation light the output AB point of isolating transformer, when working, takes from aid-to-navigation light the output CD point of transformer, select sample the respectively integrated signal amplifying circuit IC1 input of above two kinds of state positive-negative half-cycle of four groups of optocoupler T1-T4 to adopt integration ring (R1, R2, C1) comparator circuit IC2 introduces delay circuit (R5, C2) simultaneously.
The power-frequency digital frequency-division transmission method of a kind of aid-to-navigation light supervising device provided by the invention and device have following advantage:
1: emission, receiving circuit all carry out the contact of a high-voltage line of current supply circuit is not done any change in the secondary terminals of isolating transformer, thereby are safe.
2: due to without carrier signal, this programme outstanding advantages is: be not subjected to the impact of primary line insulation resistance, even when the primary line insulation resistance is zero, still can work.
3: all-wave emission (360 °) half-wave receives the Same Name of Ends that (180 °) need not to consider isolating transformer, circuit reduction.
4: it is convenient that identical or close emission, receiving circuit, circuit are concisely installed.
5: potential advantages of this programme particularly are that its transmission feature and the original inherent characteristic of dimmer major loop combine together.The series connection that primary circuit is synchronous and power frequency (50HZ) power supply is characterized as this programme and adopts the power frequency counting: time domain address and digital frequency division provide assurance; The Equivalent Transformer principle of the constant-current characteristics of major loop and isolating transformer, its magnetic saturation characteristic are this programme radiating circuit savings energy.(when being operated in 2.8-6.6A for the 100W isolating transformer, transient energy can reach several hectowatts) makes that to receive signal amplitude enough large, signal to noise ratio is high, overall performance can be done more reliably, compare with the domestic and international similar functional product of conventional carrier schemes and tentatively manifested its competitive advantage, be expected further to satisfy the airport demand.
In addition, adopt power-frequency digital frequency-division transmission method and the device of aid-to-navigation light supervising device provided by the invention, also improved the reliability and the expanded function requirement that detect and control the lamp position, show and the control of single lamp with the fault detect that realizes aid-to-navigation light.
Description of drawings
Fig. 1 system and device schematic diagram;
Fig. 2 is aid-to-navigation light master supervising device functional-block diagram;
Fig. 3 is aid-to-navigation light position supervising device functional-block diagram;
Fig. 4 is the transmission monitor electrical schematic diagram;
Fig. 5 is lamp position watch-dog electrical schematic diagram.
Embodiment
The invention will be further described by reference to the accompanying drawings below by embodiment.
Embodiment:
The power-frequency digital frequency-division transmission method of a kind of aid-to-navigation light supervising device that the present embodiment adopts, the inherent characteristic by the former current supply circuit of constant-current dimmer: series loop synchronizing characteristics, constant-current characteristics, isolating transformer principle of equal effects characteristic, the employing power supply is synchronous, time domain geocoding and wave chopping technology, realize the transmitted in both directions of signal, it is characterized in that the analog signal conversion of transmission is switching value (0/1) number of 50HZ power frequency and then adopts different divider ratios to carry out the transmitted in both directions of multiple signals and then realize that the fault detect of aid-to-navigation light shows and the control of single lamp.Can reduce or expand according to actual demand and the consumers' opinions number of channels at scene, frequency division numerical value also can adopt other natural numbers.The present embodiment has only been enumerated the bidirectional transmission method of four road signals, and frequency division numerical value adopts 4 frequency divisions, 5 frequency divisions, 7 frequency divisions, 9 frequency divisions.
As shown in Figure 1, the power-frequency digital frequency-division transmitting device of the aid-to-navigation light supervising device of the present invention's design is comprised of namely the two large divisions: light station and light on-the-spot (runway taxiway) form.Wherein the industrial computer at light station is being monitored monitor loop device corresponding to multichannel dimmer loop (main frame 1～N) can detected and control the operating state of on-the-spot each aid-to-navigation light, and the purpose that this programme adopts power-frequency digital frequency-division to carry out transmitted in both directions is intended to improve reliability and the expanded function requirement that detects and control the lamp position.
The power-frequency digital frequency-division transmission method of the aid-to-navigation light supervising device that the present embodiment provides is four-way (4 frequency divisions, 5 frequency divisions, 7 frequency divisions, 9 frequency divisions) transmitted in both directions; The practicality of this scheme shows as:
1, the monitor loop device (abbreviation main frame) that is positioned at the light station sends 4 frequency divisions (being called for short ÷ 4) converted command signal, makes the corresponding interior lamp position watch-dog (abbreviation capsule) in far-end lamp hole carry out the traffic lights conversion;
2, main frame sends 5 frequency division self check clear commands, makes the counter O reset of capsule, again counts, and correspondence (abbreviation time domain address) within unique time period that this capsule self is set is replied loopback 9 fractional frequency signals;
3, main frame during this time domain address, is received 9 frequency division answer signals, has namely realized the self-checking function of this capsule;
4, when capsule generation wick open circuit, the secondary line short circuit is during lamp hole water inlet fault, also send 7 frequency division fault-signals during the time domain address, main frame is received 7 fractional frequency signals during the time domain address of correspondence, confirm this fault lamp position, and by the computer processes and displays on the screen interface of correspondence.
This programme feature is to carry out the both-way communication of monitor loop device (main frame) and lamp position watch-dog (capsule) with power frequency digital frequency division (4 frequency divisions, 5 frequency divisions, 7 frequency divisions, 9 frequency divisions): wherein by the converted command signal (see Fig. 4) of computer to main frame.Through the IC104 AND circuit with synthesize 4 fractional frequency signals from the IC102 that is connected into 4 frequency dividing circuits, transport to the input F of carrier transmit circuit, control the break-make of T102 and carrier wave pipe T101, change load resistance, AB transports to major loop through isolating transformer B0 secondary, make corresponding far-end capsule (seeing Fig. 5) sample resistance R208 obtain peak value section dynamic variable signal, form the signal of the 4 segment switch amounts that contain via the amplification shaping translation circuit of T201～204IC201, the compositions such as 202.transported to 4 tunnel counting circuit confirmations again that formed by T205～208 IC203～211 grades by the G point, its output H point signal is through integrating circuit R253, C251, amplifying circuit IC211, comparator circuit IC212 and drive circuit T209 make relay J 2 contact conversions, have realized single lamp control function, 5 synthetic fractional frequency signals of the IC101 IC103 of Fig. 4 when main frame is received the computer self-test clear command, through above-mentioned same emission receive path, make the G point of Fig. 5 contain 5 segment switch amount signals, 5 tunnel counting circuit confirmations again via IC240～250 compositions such as grades, and amplify comparison circuit through integration, and then form the self check reset signal that Z is ordered, this signal be divided into 3 the tunnel 1. its forward position differential signal make the T290 transient switching, after differential, IC290 is given on the edge, 291 grades form quenching pulses 2. time domain address MN period (4.8S) of corresponding this capsule self by IC253 AND circuit output drive signal, T210 T211 turn-on relay J1 is disconnected, the IC251 AND circuit is high voltage at the interval output of MN time domain I point for 3. the signal emission prepares, for IC252 9 frequency dividing circuits provide working power, its Q3 output synthesizes 9 fractional frequency signals via gate circuit IC254, control radiating circuit T270 break-make by optocoupler T5, output AB by isolating transformer 9 fractional frequency signals of naming a person for a particular job are sent major loop back to, corresponding diagram 4 main frames by IC105 like this, the peak value section sampling transform circuit output signal of the compositions such as 106 includes 9 fractional frequency signals, again via IC171-190 etc. form 9 the tunnel again counting circuit confirm, and then make the W point export self-test signal, that is to say during main frame self-checking command 5 frequency divisions send, corresponding time domain address receives 9 fractional frequency signals and has namely verified this capsule self-checking function that realized working properly, here should be noted that rising edge signal makes the T191 transient switching through differential, forms the reset signal of host count device, all locates and the synchronous counting state with each capsule in the time of main frame emission self-checking command.
The signal that in corresponding diagram 5, isolating transformer rectification output X is ordered when aid-to-navigation light breaks down has obvious variation: 1. wick open circuit or secondary line open circuit make X point high voltage pulse make the K1 point form fault-signal through T271.2. wick short circuit or secondary line short circuit to make X point output signal be zero signal that water resistance rapier rod K4K5 forms when the IC273 comparator circuit makes K2 point output fault-signal 3. when the water inlet of lamp hole through the comparator circuit output point K3 of the compositions such as IC270 export fault-signal 4. above-mentioned three kinds of fault-signals all as IC271, the working power of 7 frequency dividing circuits, superpose (OR circuit) at corresponding time domain address emission 7 frequency divisions or 9 fractional frequency signals with aforesaid 9 fractional frequency signals, IC253 AND circuit function wherein such as aforementioned, purpose is to make relay J 1 to disconnect during the time domain address, be in the preparing state that transmits.7 frequency division fault-signals transfer to main frame (Fig. 4) through the dimmer major loop isolating transformer B0 through the peak value section sampling of the compositions such as IC105 106 be transformed to switching value pulse (S point) again by IC151-164 etc. be connected into 7 the tunnel again counting circuit confirm and then through amplifying circuit IC165. comparator circuit IC166 etc., its output point Y shape become fault-signal by computer to the time domain address decoder, determine fault lamp position and be presented at corresponding position.So far, the present embodiment has realized that four road signals transmit and monitor in this dimmer loop, road.In fact according to user's needs and on-the-spot different with functional requirement, the above-mentioned number of channels of actual conditions, frequency division numerical value can be done corresponding the simplification and expansion, has embodied to a certain extent the design's flexibility.
It can also be seen that from the above-mentioned course of work, the command signal of main frame emission is the real-time online continuous operation, and capsule only transmit in unique time domain address (4.8S) of self setting (7 frequency divisions, 9 frequency divisions), a receiving circuit frequency-selecting of capsule simultaneously transmits (4 frequency divisions, 5 frequency divisions) thereby do not exist signal mutually to crosstalk at main frame possibility, generally only have command signal in major loop in transmission, sketch its operation principle as an example of main frame emission conversion instruction example:
1. as previously mentioned, 4 fractional frequency signals are controlled the equivalent load (see Fig. 4) of copped wave pipe T101 break-make in order to change isolating transformer B0, the fact is that this isolating transformer design is in critical saturation condition, during 3 grades of light work of the corresponding domestic lock stream of the crest voltage amplitude of the i.e. actual output of this 100W isolating transformer ripple output dimmer, can reach several hectovolts, it is above and present three low one high states that (this amplitude of import dimmer of corresponding quasi-sine-wave output also can reach hectovolt more than) above-mentioned make-and-break signal makes its output terminals A B dynamic variable quantity can reach 100V.this signal reaches the isolating transformer of major loop target lamp capsule by the isolating transformer of 1: 1, its secondary terminals AB (seeing Fig. 5) also is loaded with changes by a relatively large margin three low one high signals (more than 10V), the peak sample translation circuit of capsule has stronger servo-actuated dynamic function, here the lag function that refers to is to adapt to the conversion of the bright level of dimmer, the dimmer output waveform is different, the aid-to-navigation light operating state of capsule is different, because this circuit adopts stronger direct current negative feedback (T203), especially the RC voltage divider has been designed in this circuit many places, (as R201, C201) played the effect of dynamic voltage stabilizing, make output waveform dynamically follow the tracks of all the time at peak value section sampling state and then by the IC202 comparator circuit in figure, analog quantity is transformed to switching value, form 1000, or 0100, 0010, 0001 output signal, four the tunnel again counting circuit carry out four tunnel countings more respectively by four output Q0-Q3 of 4 frequency dividing circuit IC211, wherein must have one the tunnel to be in the continuous counter state, take 1000 as example (seeing Fig. 5), IC203 is in the continuous counter state, to be confirmed to be conversion instruction effective for H point output signal when this counter Q5 has output signal, IC204 in figure, 206, 208, 210 are connected into 8 frequency dividing circuits, that is to say within 8 cycles setting, as long as one tunnel signal-count is arranged greater than 5, namely carry out instruction (above abbreviation 85 configuration) otherwise will be by 8 frequency dividing circuit zero clearings.The emission of above-mentioned like this host command is until the lamp position required time of conversion, at 4 frequency divisions, and about 4 * 5 power frequency periods under 85 configuring conditions.Consider the factors such as integrating circuit delay, single lamp control time is about 0.5S.Realized the specification requirement of International Civil Aviation Organization's " senior land operations guiding " handbook and left certain design margin.
85 configurations of this programme are take reliability design as the basis, disturb with respect to the electrical network that may occur, the conversion of the bright level of aid-to-navigation light, the factors such as thunderbolt are set, in fact this allocation ratio and numerical value determine the number of channels that needs with this loop, and the frequency division numerical value of each passage is closely-related, relates to the concepts such as least common multiple in Mathematical Modeling, common divisor, probability theory, for scene different specification requirement and consumers' opinions, this programme has larger flexibility.
2. the working power of this programme capsule has two kinds of supply power modes; Power supply is taken from the output AB point of isolating transformer when aid-to-navigation light is opened a way, and is that aid-to-navigation light when normal operation power supply is provided by transformer under normal conditions.The designing requirement of this transformer 1. power output＞4W. 2. the phase place of signal output waveform and amplitude satisfy the specification requirement of count pulse and the sampling of peak value section, with the signal to noise ratio of guaranteeing that complete machine is better.3. volume is little, and for this reason, this transformer adopting high permeability (＞15000 Gauss) is slim, and (former limit is that 10 circles (Φ 2.5) power output is the miniature transformer (or claiming instrument transformer) of 6W for＜0.2mm) silicon steel sheet, special coiling.
3. the counting pulse signal of this programme capsule is taken from the output AB point of isolating transformer or the output CD point of transformer, (take from the output AB point of isolating transformer when aid-to-navigation light is opened a way, take from transformer output CD point when aid-to-navigation light works).Select sample the respectively integrated signal of two states positive-negative half-cycle of four groups of optocoupler T1-T4.amplifying circuit IC1 input is introduced through integration ring (R1, R2, C1) comparator circuit IC2 introduces delay circuit (R5 simultaneously, bimodal interference when C2) its purpose is to overcome the low bright level of dimmer of domestic lock stream ripple output, realized that the counter of main frame and capsule is in the state of synchronous counting all the time, make this programme have more practicality, the isolating transformer (50-300W) that adapts to the dimmer of various waveforms output and different capacity illustrates Pyatyi (3 frequency divisions of this programme in passing, 8 frequency divisions, 10 frequency divisions, 10 frequency divisions, 10 frequency divisions) counting circuit is also introduced the integration ring, improved antijamming capability, the time domain address MN of capsule (after counter two) is with the 0-99 coding that goes forward one by one, thereby for each capsule, has self unique time domain address.Corresponding 50HZ power frequency domain addresses constantly is that 4.8S (being 4S during corresponding 60HZ) has satisfied the actual demand on airport.(enter low beam 166 minutes two-way dimmer powered every road according to international standard and be about 83).
Claims (1)
1. the power-frequency digital frequency-division transmission method of an aid-to-navigation light supervising device, it comprises the inherent characteristic by the former supply network of constant-current dimmer: the series loop synchronizing characteristics, constant-current characteristics, isolating transformer principle of equal effects characteristic, the employing power supply is synchronous, time domain geocoding and wave chopping technology, realize the transmitted in both directions of signal, it is characterized in that the analog signal conversion with transmission is 0/1 break-make number of corresponding 50HZ power frequency, and then the multichannel that adopts different frequency division numerical value again the counting circuit decoding confirm, thereby complete the transmitted in both directions of multiple signals and then realize that the fault detect of aid-to-navigation light shows and the control of single lamp, in the transmitted in both directions of described multiple signals, the minimizing of its number of channels or expansion are determined according to actual demand and the consumers' opinions at scene, frequency division numerical value also adopts corresponding natural number, the transmitted in both directions of described multiple signals adopts the bidirectional transmission method of four road signals, frequency division numerical value adopts 4 frequency divisions, 5 frequency divisions, 7 frequency divisions, 9 frequency divisions, the monitor loop device that is positioned at the light station sends 4 frequency division converted command signals, make the corresponding interior lamp position watch-dog execution traffic lights conversion in far-end lamp hole, the monitor loop device sends 5 frequency division self check clear commands, make the counter O reset of capsule, again count, correspondence is replied loopback 9 fractional frequency signals within unique time period that this capsule self is set, the monitor loop device is during this time domain address, receive 9 frequency division answer signals, namely realized the self-checking function of this capsule, when capsule generation wick open circuit, the secondary line short circuit, during lamp hole water inlet fault, also send 7 frequency division fault-signals during the time domain address, the monitor loop device is received 7 fractional frequency signals during the time domain address of correspondence, confirm this fault lamp position, and pass through the computer processes and displays on the screen interface of correspondence.
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| CN104315474A (en) * | 2014-11-12 | 2015-01-28 | 杭州上达光电科技有限公司 | Lighting system |
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| CN110264695B (en) * | 2019-07-09 | 2023-08-11 | 中国民用航空总局第二研究所 | Navigation light monitoring system and method based on power line carrier communication technology |
| CN113766712A (en) * | 2020-06-02 | 2021-12-07 | 璞洛泰珂(上海)智能科技有限公司 | Series-connection type single-lamp control system based on optical fiber communication and applied to airport navigation aid |
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| CN101765278A (en) | 2010-06-30 |
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