CN2391368Y - Carrier signal direction controller - Google Patents
Carrier signal direction controller Download PDFInfo
- Publication number
- CN2391368Y CN2391368Y CN 99248817 CN99248817U CN2391368Y CN 2391368 Y CN2391368 Y CN 2391368Y CN 99248817 CN99248817 CN 99248817 CN 99248817 U CN99248817 U CN 99248817U CN 2391368 Y CN2391368 Y CN 2391368Y
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- CN
- China
- Prior art keywords
- model
- utility
- signal
- capacitor
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a carrier signal direction controller. The utility model is characterized in that the utility model is composed of an inductance coil L and a capacitor C, wherein, the inductance coil L and the capacitor C which are connected in parallel are arranged in a box and then connected with a common AC power line of a user. According to the principle that when an inductor and a capacitor are connected in parallel, resonance can be generated under a corresponding frequency, high impedance is generated when a signal with corresponding frequency is received, so when the signal with a particular frequency goes through an element, the signal is attenuated greatly, and the wave absorption control action is achieved. The utility model has the advantages of convenient production, running and management, simple structure, low manufacture cost, etc.
Description
The utility model relates to a kind of carrier signal direction-control apparatus, belongs to the power system automation technology field.
At present, civilian money drawing plat warning electric weight automatic alarm system because there are hundreds of users in same loop, in the signal transmission, for preventing error signal, need usable frequency is cut apart on request, or takes digital data transmission.This structure makes the warning device cost of each user's money drawing plat will be with the increasing and increase of user in the loop, and because of One-to-one communication behind the frequency separation, the arrangements of components difficulty of signalling can not be general, makes to make and the increase of operational management difficulty.So far not seeing as yet has operational management conveniently, and the device that does not make money drawing plat produce misoperation occurs.
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of inductance and the electric capacity formation trap that is connected in parallel is provided, be installed on user's alternating current circuit, through trap the frequency signal travel direction in the loop is controlled, be independent of each other, can between money drawing plat, do not produce the carrier signal direction-control apparatus of misoperation.
The purpose of this utility model is achieved in that it is made up of inductance coil L, capacitor C, inductance coil L be connected on user's the public exchange power circuit after capacitor C is in parallel.
The utlity model has following advantage compared to existing technology: after user's alternating current circuit is installed the utility model, though the frequency of all auto alarm signal devices is identical in the loop, but travel direction control behind trap, be independent of each other, can between money drawing plat, not produce misoperation, the production run management is extremely convenient, and installation cost is low.
The explanation of accompanying drawing drawing:
Accompanying drawing is a syndeton schematic diagram of the present utility model.
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
The utility model is formed carrier wave control device 2 by inductance coil L, capacitor C.Inductance coil L and capacitor C are in parallel, and are loaded in the box body, draw two tap version heads, and one is that user's public exchange power circuit 1 is connected with line, and another root is connected with carrier wave generating means 3.Shown in the figure is that the utility model is connected in parallel on the johning knot composition on the subscriber's line.
Operation principle of the present utility model: this device is according to after inductance, the electric capacity parallel connection, under correspondent frequency, produces resonance, promptly the signal to corresponding frequencies produces high impedance, make by the set specific frequency signal of element and decay significantly, even reduce to null value, reach the principle design of wave arrestment effect.But to the signal of other frequency, do not produce resonance, have no effect.This device is contained in the signal transmission ranges outside of agreement, same frequency signal beyond the signal transmission ranges of agreement can not be transferred in this scope, it is the fail to start receiving system, and the previously arranged signal transmission range can not be transferred to beyond the utility model with interior signal and influence other same frequency signal receiving device, 4 refer to the carrier wave direction among the figure, and then play the direction control action of signal.After the utility model was installed, to the control of the frequency signal travel direction in the loop, no matter how many users were independent of each other, and make management quite convenient.According to inductance capacitance parallel resonance principle, determine the capacity of inductance capacitance with institute's selected frequency.
Claims (1)
1, a kind of carrier signal direction-control apparatus, it is characterized in that: it is made up of inductance coil L, capacitor C, inductance coil L be connected on user's the public exchange power circuit after capacitor C is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99248817 CN2391368Y (en) | 1999-10-26 | 1999-10-26 | Carrier signal direction controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99248817 CN2391368Y (en) | 1999-10-26 | 1999-10-26 | Carrier signal direction controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391368Y true CN2391368Y (en) | 2000-08-09 |
Family
ID=34033915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99248817 Expired - Fee Related CN2391368Y (en) | 1999-10-26 | 1999-10-26 | Carrier signal direction controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391368Y (en) |
-
1999
- 1999-10-26 CN CN 99248817 patent/CN2391368Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |