JPH0474172U - - Google Patents
Info
- Publication number
- JPH0474172U JPH0474172U JP11815590U JP11815590U JPH0474172U JP H0474172 U JPH0474172 U JP H0474172U JP 11815590 U JP11815590 U JP 11815590U JP 11815590 U JP11815590 U JP 11815590U JP H0474172 U JPH0474172 U JP H0474172U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- transmitting
- track
- level
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Description
第１図は本考案に係る軌道回路用送信装置の構
成を示すブロツク図、第２図は本考案に係る軌道
回路用送信装置の動作状態を説明する受信特性図
、第３図は本考案に係る軌道回路用送信装置の別
の実施例のブロツク図、第４図は本考案に係る軌
道回路用送信装置の更に別の実施例のブロツク図
、第５図は各閉塞区間における列車検知信号を示
した特性図、第６図は本考案に係る軌道回路用送
信装置の更に別の実施例のブロツク図、第７図は
従来の軌道回路を用いた送受信装置の構成を示す
ブロツク図、第８図は従来の送受信装置における
受信回路の受信状態を示す特性図、第９図は従来
の受信回路から得られる列車検知信号の特性図で
ある。
１……軌道回路、２……送信回路、２１……信
号発生回路、２２……増幅回路、２３……送信信
号、３……受信回路、３０……受信信号、４……
送信電力制御回路、４１……受信レベル検出回路
、４２……制御信号発生回路、４３……制御信号
。
Fig. 1 is a block diagram showing the configuration of the track circuit transmitting device according to the present invention, Fig. 2 is a reception characteristic diagram explaining the operating state of the track circuit transmitting device according to the present invention, and Fig. 3 is a block diagram showing the configuration of the track circuit transmitting device according to the present invention. FIG. 4 is a block diagram of yet another embodiment of the track circuit transmitting device according to the present invention, and FIG. 5 shows train detection signals in each blocked section. The characteristic diagram shown in FIG. 6 is a block diagram of yet another embodiment of the transmitting device for a track circuit according to the present invention, FIG. 7 is a block diagram showing the configuration of a transmitting and receiving device using a conventional track circuit, and FIG. FIG. 9 is a characteristic diagram showing the receiving state of a receiving circuit in a conventional transmitting/receiving device, and FIG. 9 is a characteristic diagram of a train detection signal obtained from the conventional receiving circuit. DESCRIPTION OF SYMBOLS 1...Track circuit, 2...Transmission circuit, 21...Signal generation circuit, 22...Amplification circuit, 23...Transmission signal, 3...Reception circuit, 30...Reception signal, 4...
Transmission power control circuit, 41... Reception level detection circuit, 42... Control signal generation circuit, 43... Control signal.
Claims (1)
を有する軌道回路用送信装置であつて、 前記送信回路は、送信信号を発生する信号発生
回路と、増幅回路とを有し、 前記増幅回路は、前記送信信号を増幅して前記
軌道回路の一端側に送信する回路であり、 前記送信電力制御回路は、受信レベル検出回路
は、受信レベル検出回路と、制御信号発生回路と
を有し、 前記受信レベル検出回路は、前記軌道回路の他
端側で前記送信信号を受信し、その受信信号のレ
ベルを前記制御信号発生回路に供給する回路であ
り、 前記制御信号発生回路は、前記受信信号のレベ
ルが基準レベルより高く、かつ、その変化率が所
定の値以内である場合に、受信信号のレベルを所
定の範囲とすべく、前記増幅回路の電力増幅率を
制御する回路であること を特徴とする軌道回路用送信装置。[Claims for Utility Model Registration] A transmitting device for a track circuit having a track circuit, a transmitting circuit, and a transmitting power control circuit, wherein the transmitting circuit includes a signal generating circuit that generates a transmitting signal, an amplifier circuit, and a transmitting circuit. The amplifier circuit is a circuit that amplifies the transmission signal and transmits it to one end side of the track circuit; The transmission power control circuit is a circuit that amplifies the transmission signal and transmits the signal to one end of the track circuit; a generation circuit, the reception level detection circuit is a circuit that receives the transmission signal at the other end of the track circuit and supplies the level of the reception signal to the control signal generation circuit, and the control signal The generating circuit increases the power amplification factor of the amplifier circuit in order to bring the level of the received signal within a predetermined range when the level of the received signal is higher than the reference level and the rate of change is within a predetermined value. A transmitting device for a track circuit, characterized in that it is a controlling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11815590U JP2531940Y2 (en) | 1990-11-09 | 1990-11-09 | Transmission device for track circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11815590U JP2531940Y2 (en) | 1990-11-09 | 1990-11-09 | Transmission device for track circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0474172U true JPH0474172U (en) | 1992-06-29 |
| JP2531940Y2 JP2531940Y2 (en) | 1997-04-09 |
Family
ID=31866062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11815590U Expired - Lifetime JP2531940Y2 (en) | 1990-11-09 | 1990-11-09 | Transmission device for track circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531940Y2 (en) |
-
1990
- 1990-11-09 JP JP11815590U patent/JP2531940Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531940Y2 (en) | 1997-04-09 |