RU60906U1 - ON-BOARD ALARM SYSTEM ABOUT STATUS OF MOVING ALARMS - Google Patents

Abstract

The utility model relates to vehicle equipment and can be used in automobiles.

The technical result is to increase the safety of vehicles.

What is new is that in the FSU, consisting of an antenna connected to the receiver, a block of indicators for the status of a crossing signaling, a selector, a block for decoding and monitoring (BDK), a block for analyzing the status of a crossing (BASP), a control unit for signaling a BUS, a diagnostic indicator, and a block are introduced functional diagnostics (BFD), moreover, the receiver, selector, BDK, BASP, BUS are connected in series to each other, BISPS are connected to the BUS, sound alarm, BDK has an additional output of data error signal and is connected to the BFD, BASP has ny output signal contradictions and it is connected to the BFD, a BFD connected WCD and output display connected to the diagnostic indicator. 1 sec 1 doctor

Description

The invention relates to the equipment of vehicles and can be used, for example, in automobiles to obtain information about the condition of a railway crossing.

Known on-board signaling system on the status of crossing signaling (patent for invention RU No. 2153434, IPC: B 61 L 29/02. Publ. 07.27.2000) - prototype. The on-board signaling system about the status of the crossing signaling consists of an antenna connected to the receiver, a block of indicators of the status of the crossing signaling (BISPS).

The disadvantage of this system is that it does not ensure the safety of vehicles on level crossings, because there is a high probability of occurrence of false alarms due to the receipt of messages not from the warning system about the status of the crossing signaling, but from "alien" signal sources, as well as due to the lack of monitoring of the integrity of received messages. The system has limited signaling capabilities, due to the absence of a signaling control unit (BEAD) and an audible signaling device, as well as the presence of a block of indicators for the status of cross-country signaling (BISPS) with a limited ability to signal danger.

The system lacks the ability to self-diagnose, display its results, identify messages containing inconsistent data, and automatically interpret the facts of the presence or absence of standard crossing signaling signals (“moving open”, “moving closed and healthy”, “moving faulty”) in messages recommended for the driver of the vehicle, which also leads to low traffic safety.

The utility model allows to increase the safety of vehicles in the crossing zone by reducing the likelihood of false alarms due to the receipt of messages not from the warning system about the status of the crossing signal, but from "alien" signal sources, monitoring the integrity of received messages, identifying messages, containing conflicting data, providing the possibility of self-diagnosis, indicating its results, the possibility of automatic interpretation of facts I-lack of standard signals crossing signaling ( "crossing is open," "crossing is closed and fix", "defective transfer") in the message of recommendation for the driver of the vehicle and extending signaling capability.

When performing a receiver system with an additional output for evaluating the signal level connected to the functional diagnostics unit (BFD), the system is self-diagnosed by the signal level, which increases safety.

The technical result is achieved in the on-board signaling system (BSS) on the status of the crossing signaling consisting of an antenna connected to the receiver and the block of indicators of the status of the crossing signaling (BISPS).

What is new is that a selector, a decoding and control unit (BDK), a moving state analysis unit (BASP), a signaling control unit (BUS), a diagnostic indicator, a functional diagnostics unit (BFD), the receiver, selector, BDK, are introduced into it, BASP, BUS are connected in series with each other, BSPS and an audible alarm are connected to the BUS, BDK has an additional output of a data error signal and is connected to the BFD, BASP has an additional output of a contradiction signal and is connected to the BFD, the BFD is connected to the BPS and the indication output is connected en to the diagnostic indicator.

In the BSS, the receiver can be made with an additional output for estimating the signal level and connected to the BFD by it.

The presence of a BFD BFD and a diagnostic indicator in the BSS ensures (automatic) self-diagnosis of the system based on the level of the received signal, the presence of its own message in the radio channel, the integrity of the received messages, and the indication of the results.

The serial connection of the receiver, selector, BDK, BASP, BUS to each other, as well as the connection to the BUS BUS and sound alarm provides communication between the crossing signaling and the vehicle in the crossing area. The use of an audio signal in the FSU provides the possibility of additional signaling.

The presence of a selector in the FSB increases the reliability and security of the system and by isolating “your” messages from the received signals, which reduces the likelihood of false alarms.

The presence in the FSU BDK increases its reliability and security by providing the ability to control the integrity of received messages.

The presence in the BASP system improves road safety by providing the ability to identify messages containing conflicting data, automatically interpret the facts of the presence or absence of standard signals for crossing signals (“moving open”, “moving closed and

serviceable ”,“ moving defective ”) in messages recommended for the driver of the vehicle.

The BDK has an additional output of the data error signal and is connected to the BFD, the BASP has an additional output of the contradiction signal and is connected to the BFD, the BFD is connected to the BUS and connected to the diagnostic indicator, which implements the co-diagnosis of the BSS.

The above properties of the blocks and their connections can improve the safety of vehicles in the crossing zone.

The presence in the FSU BUS, BIOSPS and an audible warning device expands the capabilities of the alarm system, which increases road safety. BUS allows you to use sophisticated signaling methods in ACAS, for example, flashing indicators, as well as the use of an audio signal

The use of a receiver in the FSU with an additional output for estimating the signal level connected to the BFD allows it to be self-diagnosed by the signal level, reducing the number of false positives when receiving signals of the crossing signal, which ensures the safety of vehicles in the crossing zone.

The figure shows a diagram of an on-board signaling system about the status of a crossing signaling.

The on-board signaling system about the status of the crossing signaling consists of an antenna 1 connected to the receiver 2, a selector 3, a decoding and control unit (BDK) 4, a block for analyzing the status of the crossing (BASP) 5, BUS 6, a block of indicators for the status of the crossing signaling (BISPS) 7 , a diagnostic indicator 8 and an audible warning device 9, a functional diagnostics unit (BFD) 10, a watchdog timer 11, a power control unit 12, a switch 13.

BISPS 7 is connected to BUS 6, an audible warning device 9. BDK 4 has an additional output of a data error signal and is connected to BFD 10, BASP 5 has an additional output of a contradiction signal and is connected to BFD 10. BFD 10 is connected to BUS 6 to the diagnostic indicator 8.

The receiver 2 is made with an additional output for evaluating the signal level and connected to the BFD 10.

BFD 10 additional output connected to the watchdog timer 11. Watchdog timer 11 and the power control unit 12 are connected to the switch 13. The switch 13 is connected to the power management inputs of the FSU.

The listed blocks: Selector 3, BDK 4, BASP 5, BUS 6, BFD 10 and the connections between them can be implemented on the Microchip PIC 16 microcontroller.

As the receiver 2 with the output of the evaluation of the signal level can be used high-frequency transceiver Chipcon CC 1020 in the receiver mode.

Antenna 1 is implemented as a coil of a printed conductor equal to one quarter of the wavelength of the center frequency of the radio channel 15.

As BIPSPS 7 and diagnostic indicator 8, LED blocks can be used. As an audio signaling device 9, a piezodynamic speaker can be used.

The watchdog timer 11, the power control unit 12, the switch 13 and the communication between them can be implemented on a separate chip.

The figure shows the connection of the power supply system 14 to the power control unit and the radio channel 15.

The FSU receives signals from radio channel 15, which can be generated by a signaling device (for example, installed at the crossing), periodically issuing a complex message reflecting the state of the crossing signaling (“moving open”, “moving closed and in good condition”, “moving defective”) containing the identifier .

Antenna 1 receives signals transmitted in a radio channel. Signals in analog form go to the input of receiver 2.

Receiver 2, which is a Chipcon CC1020 transceiver operating in receive mode, performs filtering, demodulation, amplification, and analog-to-digital conversion (ADC) and simultaneously performs an integral assessment of the signal level. At the output of the receiver 2, a digital signal is generated that reflects the current state of the radio channel 15 at the transmitter frequency, and at the additional output, a digital signal for estimating the signal level of the radio channel.

A digital signal reflecting the state of radio channel 15 is transmitted to a selector 3, which selects (searches and selects) “your” messages based on the presence of an identifier in digital signals received from receiver 2 that reflect the state of the radio channel. If a signal is found that has the signs of “its” message, it is transmitted to the BDK 4. So reduces the likelihood of false alarms due to the receipt of messages not from the warning system about the status of the crossing signal, but from "alien" signal sources, which increases the safety of vehicles at level crossings.

BDK 4 monitors the integrity of the received message by calculating the checksum of the field of received data (signals) and comparing it with the checksum contained in the message. In case of violation of the integrity of the received message, the BDK 4 generates a signal of violation of the integrity of the message (data error) in the BFD 10. Thus The integrity of received messages is monitored.

In the case of coincidence of the checksums, a message is decoded, the result of which is signals reflecting the status of the move (“move is open”, “move is closed and in good order”, “move is faulty”) emitted to radio channel 15 by a signaling device. They are transferred to BASP 5.

BASP 5 controls the consistency of the signals contained in the message. If there are conflicting signals in the message, for example, “the move is open” and “the move is closed and serviceable” generates a contradiction signal in the BFD 10. T.O. messages containing conflicting data are identified.

If no contradiction is found, the facts of the presence or absence of standard crossing signaling signals are interpreted (“moving is open”, “moving is closed and in good order”, “moving is faulty”) into messages recommended for the driver of the vehicle, for example, in accordance with table 1.

Table 1 The move is open Relocation is closed and serviceable. Relocation failed Attention moving Attention!!! Crossing alarm defective Stop! Relocation is closed! Contradiction 0 0 0 one one one one 0 0 one one one one one 0 one 0 one 0 one 0 0 one one one one one one one 0 0 one 0 0 0 one 0 one one one 0 0 one one 0 one one one one one one one one one one one

T.O. an automatic interpretation of the facts of the presence or absence of standard crossing signaling signals (“moving is open”, “moving is closed and in good condition”, “moving is faulty”) into messages recommended for the driver of the vehicle.

Interpretation results (signals “Caution moving”, “Caution !!! Crossing signaling is faulty”, “Stop! Moving closed!”) Are transmitted to BUS 6, which controls the display of messages on the LEDs 7 LED block and sound notification using the sound signaling device 9 implemented in the form of piezodynamics. T.O. provides enhanced signaling capabilities.

From the receiver 2 in the BFD 10 from the additional output receives a digital signal for assessing the signal level of the radio channel.

BFD 10 implements an algorithm for the analysis of the presence / absence of signals arriving to it: violation of the integrity of the message (data error), contradictions, reduction of the signal level estimate (if there is an appropriate output from receiver 2). In case of detection of a critical number of integrity signals, for example, in 5 out of 10 received messages, or a strong decrease in the signal level estimate, for example, below 75% of normal, or the presence of a contradiction signal, the BFD 10 generates a signal about the system malfunction and at the indicator output Diagnostic 8 system error indication signal.

When a fault signal is received from the output of the BFD 10 to BUS 6, the indication and sound notification of the signals “Attention moving”, “Attention !!! The crossing alarm is defective ”,“ Stop! The move is closed! ”Stops, BUS 6 puts the БИССС 8 in the blinking mode, sends a signal of system malfunction to the sound signaling device 9, for example, in the form of short-term high-frequency sound pulses.

Diagnostic indicator 8, when there is a system error signal, indicates a fault message. T.O. the possibility of self-diagnosis and indication of its results is provided.

Claims (2)

1. On-board signaling system (BSS) on the status of the crossing signaling, consisting of an antenna connected to the receiver, a block of indicators of the status of the crossing signal system (BISPS), characterized in that a selector, a decoding and control unit (BDK), a state analysis unit are introduced into it relocation (BASP), alarm control unit (BAS), diagnostic indicator, functional diagnostics unit (BFD), moreover, the receiver, selector, BDK, BASP, BUS are connected in series to each other, BISPS and an audible warning device are connected to the BUS, the BDK has up to olnitelny output signal data errors and it is connected to the BFD, Baspa has an additional output signal contradictions and it is connected to the BFD, a BFD connected WCD and output display connected to the diagnostic indicator. 2. The on-board signaling system (BSS) on the status of the crossing signaling according to claim 1, characterized in that the receiver is configured with an additional output for estimating the signal level and is connected to the BFD by it.