MXJL05000016A

MXJL05000016A - Electronic board for remotely controlling and monitoring fire water-pumping equipments

Info

Publication number: MXJL05000016A
Application number: MXJL/A/2005/000016A
Authority: MX
Inventors: Mejorada Gonzalez Luis
Original assignee: Bombas Mejoradas S A De C V
Filing date: 2005-05-19
Publication date: 2007-04-10

Abstract

The present invention describes an electronic board for remotely controlling and monitoring fire water-pumping equipments, which is characterised in that it comprises an electronic card having a circuit A for supplying power, a circuit B for checking the operation voltage, a circuit C for charging a backup external battery, a circuit D for measuring the battery charge, a circuit E for registering pumping equipment events, a circuit F for transmitting-receiving data at 1 Megabit/s, a RS 232 G serial circuit for transmitting data, a circuit H for activating alarms, and a circuit I having a RISC microcontroller for controlling the whole application. The aforementioned board contains a 12v battery as a power backup and a cubic-shaped metallic cabinet having an aperture located at a lateral portion thereof for housing the board and battery, said opened side is covered by a metallic cap having front perforations for placing alarm leds;the cabinet includes three side perforations for instal ling electric and communication connexions.

Description

ELECTRONIC BOARD OF CONTROL AND REMOTE MONITORING, FOR FIRE PUMPING EQUIPMENT AGAINST FIRE BACKGROUND OF THE INVENTION Fire Systems are usually systems that are needed only when there is a disaster, therefore they can be forgotten systems, worse even systems that do not have a maintenance program which can cause a problem when it is really needed from the system; the control panel and remote monitoring for fire-fighting equipment presents a solution for the constant monitoring of fire systems, forcing the personnel in charge of maintenance to solve any problem that the board detects, for example in addition to giving warning by means of alarms audible of the failures presented by the water pumping equipment against fire due to: lack of water in the tank, lack of fuel, periodic test failure, failure of the battery charger, low oil pressure in the engine, low pressure in the the line against fire, about revolutions of the internal combustion engine, in addition to turning on a fault indicator and an audible alarm this board is connected to a personal computer and sends emails to the different users configured in a totally friendly computer program.

DESCRIPTION OF THE INVENTION The characteristic details of the electronic control and remote monitoring board for fire water pumping equipment are clearly shown in the following description and in the accompanying drawings, as well as a description thereof and following the same reference signs to indicate the parts and figures, which are mentioned by way of example and should not be considered as limiting.

Brief description of the figures: Figure 1 is a complete electronic diagram of the electronic board of the board, divided into sections: Figure 2 is an electronic diagram of section A of the card. Figure 3 is an electronic diagram of section B of the card. Figure 4 is an electronic diagram of section C of the card. Figure 5 is an electronic diagram of section D of the card. Figure 6 is an electronic diagram of section E of the card. Figure 7 is an electronic diagram of section F of the card. Figure 8 is an electronic diagram of section G of the card. Figure 9 is an electronic diagram of section H of the card. Figure 10 is an electronic diagram of section I of the card. Figure 11 is an electronic diagram of section J of the card.

With reference to said figures, the board consists of: An electronic card, which in turn comprises a circuit (A), which provides the voltage sources that feed the entire board, this circuit (A) has a pair of external connections (90) and (91) that serve to receive electric power from an external source; a varistor (1) that eliminates transients from high voltage peaks; two capacitors (2 and 3) that operate as line filters; a resettable fuse (4) to protect the board of short circuits in this stage up to the primary of a transformer (5); a second resettable fuse (7) that protects the board from short circuits from the secondary of a transformer (6); a rectifier bridge (8) that converts the alternating signal into a direct pulsing signal; a capacitor (9) to obtain a constant signal of +20 V (10), this voltage is used to build a battery charger that is externally connected to the electronic card; we also have a diode (11) that serves to decouple the +5 V voltage source and the +20 V signal (10); there is also a regulator switched to a high frequency of 50 Khz (13) that generates a voltage source of +5 V; and works with some capacitors (12,14, 15, 17 and 18), and real (40), with backup of a battery (41), to record the exact date and time, and is used at the precise moment in that any event is generated, this clock (40) with a crystal (42) that emits pulses that oscillate at 32768 Hz and communicates with the microcontroller (81) as well as memory through two wires (38 and 39) with protocol I2C at a speed of 100 Kbits / Sec.

An F circuit that contains a "CAN Bus" protocol transmitter-receiver (47) that works up to a speed of 1 Mbits / Sec, in our application works at 33.3355 Kbits / Sec; has two filters of electromagnetic interference (43 and 44), two resistors (45 and 46) to close the loop of current, in this case it is required only of a two-wire multipoint protocol (86 and 85) and works with differential voltage; finally, the circuit has two connections (48 and 49) to join the microcontroller (81).

A G circuit containing a serial receiver transmitter (50) of RS-223 protocol to communicate with a personal computer through a serial connection (51), communication is performed at 9600 Bits / Sec, the transmission-reception format is 10 bits for each Byte, 1 start BIT, 8 data bits and a Stop BIT; it communicates with the microcontroller (81) via a connection (92) and receives information from the microcontroller (81) via a connection (93).

A circuit H that is constituted of at least 8"leds" bicolores to indicate the status of the alarms, these alarms are: Status Fuel Pump (52) connected to the microprocessor (81) through the tracks (60 and 61), water pressure switch (53) connected to the microprocessor (81) by the tracks (62) and (63), Fuel level (54) connected to the microprocessor (81) by the tracks (64 and 65), Tank level (55) connected to the microprocessor (81) by the tracks (66 and 67), Selector in Automatic ( 56) connected to the microprocessor (81) by the tracks (68 and 69), Battery charger status (57) connected to the microprocessor (81) by the tracks (70 and 71), Periodic Test Status (58) connected to the microprocessor (81) by the tracks (72 and 73), Start Fault (59) connected to the microprocessor (81) by the tracks (74 and 75).

A circuit I that is composed of a serial programming circuit (76) that basically serves to emulate and program the microcontroller (81), which in turn comprises a communication line (77), a programming voltage (78), as well as a 5V power supply (79) and a connection to the micro controller (81) via the track (80).

Finally, said card has a circuit J for the operation of the complete application, which has the microcontroller (81) of RISC technology that works with an external oscillator (82) at 4 MHz and internally is multiplied by 4, giving a speed of work of 16 MHz, this microcontroller (81) is responsible for controlling the circuit B battery charger integrated, to activate an auditory alarm (84), receive a pulse of a button (83) that helps us to silence the auditory alarm, read and write in non-volatile memory (37), read and set date and time in the real-time clock (42), turn on and off the two-color "leds" (52, 53, 54, 55, 56, 57, 58 and 59) depending on the status of the alarms, communicate with the personal computer in RS-232 serial form (51) and receive Bus Can information (48 and 49) that is sent by the Control of the Fire System (85 and 86); an audible alarm (84), which is activated when an event is generated in the equipment; a button (83) to silence the audible alarm; and a battery (82) to support electric current in the absence of this. Finally, it should be noted that the microcontroller (81) must be provided with all the necessary inputs to receive the aforementioned connections of the other circuits.

The arrangement of the circuits in this card makes it one of the novel features of the present invention, which we do not find in any known water pumping equipment.

The board is also provided with a maintenance free 12V 4A battery, which will provide electrical power to the board, in case of lack thereof.

Finally, said board has a metal cabinet, preferably cold rolled, 18 gauge, to protect the electronic card and the battery; said cabinet is cubic in shape, with an open side, through which the card and battery are inserted; said open side is covered with a cover of the same material of the cabinet and perimetrally it has a neoprene packing to make a hermetic seal; the cover has vertical perforations to place the "leds" and lateral perforations to allow the passage of the connections that will communicate it to a computer and to the fire-fighting equipment.

The way the board works is the following: it connects to any 127V electrical outlet through the terminals (90 and 91) and then the voltage is reduced by the transformer (6) to a voltage of 5 V which is the voltage with which the entire circuit operates; the card receives information on the operation conditions of the fire water pumping equipment registered on its board, through an RJ45 connection (85 and 86) through a twisted pair cable that can have a maximum length of 1200 m without being lose the signal, so the remote monitoring board can be placed at that distance from the fire water pumping equipment, this information is sent to the microcontroller (81) which transforms these signals into programming codes and response signals to turn on "LED'S" indicators (52, 53, 54, 55, 56, 57, 58 and 59) on the remote monitoring board, as well as an audible alarm (84) that give notice of the alarms recorded on the equipment; an internal timer (40, 41 and 42) of the card, records the date and time of each alarm and this information is stored in the memory of the microcontroller (81), the information recorded in real time in the microcontroller (81) is sent to a computer through the connection (51) and in this computer every alarm produced in the fire water pumping equipment is recorded in a computer program developed specifically for the remote monitoring board, this computer program has the capacity to send automatic emails at the moment of registering the alarms to recipients previously registered in said program as well as to allow access to the microcontroller's memory (81) and to be able to see in the computer a history of each alarm registered in the equipment up to a period of 7 years, this history can be stored in a file on the computer or it can be sent automatically at the time of occurrence r the event, in sections determined to email recipients registered in the system; the board allows itself to be connected to a network of computers and be consulted by a computer network worldwide.

The card goes inside a cabinet of cubic form built in cold rolled sheet lime 18 with open side, this open side is covered with a lid of the same material as the cabinet, on the door are installed the "LEDs" indicators of the alarms; Also within the same cabinet is a 12V battery, 4a which serves as backup power in case of lack thereof for a period of 3 days, this battery receives electrical charge circuit C of the electronic card.

Claims

CLAIMS Having sufficiently described my invention, I consider it a novelty and therefore claim as my exclusive property what is contained in the following clauses:

1. An electronic control and remote monitoring board for fire water pumping equipment, characterized in that it consists of: i) an electronic card, which in turn comprises; ia) a circuit (A), which provides the voltage sources that feed the entire board, this circuit (A) has a pair of external connections (90) and (91) that serve to receive electrical power from an external source; a varistor (1) that eliminates transients from high voltage peaks; two capacitors (2 and 3) that operate as line filters; a resettable fuse (4) to protect the board of short circuits in this stage up to the primary of a transformer (5); a second resettable fuse (7) that protects the board from short circuits from the secondary of a transformer (6); a rectifier bridge (8) that converts the alternating signal into a direct pulsing signal; a capacitor (9) to obtain a constant signal of +20 V (10), this voltage is used to build a battery charger that is externally connected to the electronic card; we also have a diode (11) that serves to decouple the +5 V voltage source and the +20 V signal (10); there is also a regulator switched to a high frequency of 50 Khz (13) that generates a voltage source of +5 V; and it works together with capacitors (12, 14, 15, 17 and 18), and a diode (16) and a filter (19) that reduces the noise generated by electromagnetic interference; i.b) a circuit B which serves to verify whether or not voltage exists in the primary of the transformer (5) of circuit A; this circuit B is composed of an optocoupler (20), which emits a signal so as not to damage the rest of the circuit, this signal that is transmitted through a connection 88, indicates a microcontroller (81), located in circuit J, to work in energy saving or normal mode by means of a diode (21) and a capacitor (22); i.c) a circuit C that is used to charge an external battery; which contains a pair of power elements (23 and 98), a pair of diodes (24 and 25), a coil (17), a pair of resistors (26 and 95) and a capacitor (96); likewise there are 4 resistors (32, 33, 35 and 36), an operational amplifier (93) and another capacitor (34), which configured in this way, form a non-inverting amplifier; finally, said circuit C has a connection (87) to communicate with the microcontroller (81); i.d) a circuit D for measuring the voltage of the battery charge, by means of resistors (27 and 28) and an operational amplifier (29) that operates as a decoupling follower; it also has a resistor (30), four capacitors (31, 97, 100 and 101) and a diode (99), which when configured operate as a low pass filter with a cutoff frequency 10 Hz; this circuit also has a connection (89) for connecting to the microcontroller (81); i.e) an E circuit is responsible for recording all the events that occurred in the water pumping equipment; which is composed of a non-volatile memory (37) with a capacity of 64 Kb, which can store up to 10665 events in the format Day-Month-Year-Hour-Minute-Event Code, this memory (37) is connected to the microcontroller ( 81) by means of two tracks (38 and 39) with protocol 12 C with communication speed of 100 Bits / Sec; and in addition, it has a real time clock (40), with a battery backup (41), to record the exact date and time, and is used at the precise moment in which any event is generated, this clock (40) how much with a crystal (42) that emits pulses that oscillate to 32768 Hz and communicates with the microcontroller (81) as well as the memory by means of two wires (38) and (39) with I2C protocol at a speed of 100 Kbits / Sec; i.f) an F circuit containing a "CAN Bus" protocol transceiver (47) that works up to a speed of 1 Mbits / Sec, in our application it works at 33.3355 Kbits / Sec; has two filters of electromagnetic interference (43 and 44), two resistors (45 and 46) to close the loop of current, in this case it is required only of a two-wire multipoint protocol (86 and 85) and works with differential voltage; finally, the circuit has two connections (48 and 49) to join the microcontroller (81); ig) a G circuit containing a serial receiver transmitter (50) of RS-223 protocol to communicate with a personal computer via a serial connection (51), communication is performed at 9600 Bits / Sec, the transmission-reception format is 10 bits for each Byte, 1 start BIT, 8 data bits and a Stop BIT; it communicates with the microcontroller (81) via a connection (92) and receives information from the microcontroller (81) via a connection (93); i.h) a circuit H that is constituted of at least 8"leds" bicolores to indicate the status of the alarms, these alarms are: Status Fuel Pump (52) connected to the microprocessor (81) through the tracks (60) and (61), water pressure switch (53) connected to the microprocessor (81) by the tracks (62) and (63), Fuel level (54) connected to the microprocessor (81) by the tracks (64) ) and (65), Tank level (55) connected to the microprocessor (81) by the tracks (66) and (67), Automatic Selector (56) connected to the microprocessor (81) by the tracks (68) and (69) ), State of the Battery charger (57) connected to the microprocessor (81) by the tracks (70) and (71), Periodic Test Status (58) connected to the microprocessor (81) by the tracks (72) and (73) , Start Fault (59) connected to the microprocessor (81) by the tracks (74) and (75); i. i) a circuit I that is composed of a serial programming circuit (76) that basically serves to emulate and program the microcontroller (81), which in turn comprises a communication line (77), a programming voltage (78) ), as well as a 5V power supply (79) and a connection to the micro controller (81) via the track (80); and ij) a circuit J for the operation of the complete application, which has the microcontroller (81) of RISC technology that works with an external oscillator (82) at 4 MHz and internally is multiplied by 4, giving a working speed of 16 MHz, this microcontroller (81) is responsible for controlling the B circuit integrated battery charger, activating an auditory alarm (84), receiving a pulse of a button (83) that helps us to silence the auditory alarm, read and write in non-volatile memory (37), read and set date and time on the real-time clock (42), turn on and off the two-color "leds" (52, 53, 54, 55, 56, 57, 58 and 59) depending on the status of the alarms, communicate with the personal computer in RS-232 serial form (51) and receive Bus Can information (48 and 49) that is sent by the Control of the Fire System (85 and 86); an audible alarm (84), which is activated when an event is generated in the equipment; a button (83) to silence the audible alarm; and a battery (82) to support electric current in the absence of this. Finally it should be noted that the microcontroller (81) must be provided with all the necessary inputs to receive the aforementioned connections of the other circuits; ii) a 12V 4a maintenance-free battery is the one that will provide the board with electrical power, in case of lack of it; Y iii) a metal cabinet, preferably cold rolled, 18 gauge, to protect the electronic card and the battery; said cabinet is cubic in shape, with an open side, through which the card and battery are inserted; said open side is covered with a cover of the same material of the cabinet; the cover has vertical perforations to place the "leds" and lateral perforations to allow the passage of the connections that will communicate it to a computer and to the fire-fighting equipment.

2. An electronic board for an electronic control and remote monitoring board for fire water pumping equipment, characterized in that it consists of: i) a circuit (A), which provides the voltage sources that feed the entire board, this circuit (A) has a pair of external connections (90) and (91) that serve to receive electrical power from an external source; a varistor (1) that eliminates transients from high voltage peaks; two capacitors (2 and 3) that operate as line filters; a resettable fuse (4) to protect the board of short circuits in this stage up to the primary of a transformer (5); a second resettable fuse (7) that protects the board from short circuits from the secondary of a transformer (6); a rectifier bridge (8) that converts the alternating signal into a direct pulsing signal; a capacitor (9) to obtain a constant signal of +20 V (10), this voltage is used to build a battery charger that is externally connected to the electronic card; we also have a diode (11) that serves to decouple the +5 V voltage source and the +20 V signal (10); there is also a regulator switched to a high frequency of 50 Khz (13) that generates a voltage source of +5 V; and it works together with capacitors (12, 14, 15, 17 and 18), and a diode (16) and a filter (19) that reduces the noise generated by electromagnetic interference; I) a circuit B which serves to verify whether or not there is voltage in the primary of the transformer (5) of circuit A; this circuit B is composed of an optocoupler (20), which emits a signal so as not to damage the rest of the circuit, this signal that is transmitted through a connection 88, indicates a microcontroller (81), located in circuit J, to work in energy saving or normal mode by means of a diode (21) and a capacitor (22); iii) a circuit C that is used to charge an external battery; which contains a pair of power elements (23 and 98), a pair of diodes (24 and 25), a coil (17), a pair of resistors (26 and 95) and a capacitor (96); likewise there are 4 resistors (32, 33, 35 and 36), an operational amplifier (93) and another capacitor (34), which configured in this way, form a non-inverting amplifier; finally, said circuit C has a connection (87) to communicate with the microcontroller (81); iv) a circuit D for measuring the voltage of the battery charge, by means of resistors (27 and 28) and an operational amplifier (29) that operates as a decoupling follower; it also has a resistor (30), four capacitors (31, 97, 100 and 101) and a diode (99), which when configured operate as a low pass filter with a cutoff frequency of 10 Hz; this circuit also has a connection (89) for connecting to the microcontroller (81); v) an E circuit is responsible for recording all the events that occurred in the water pumping equipment; which is composed of a non-volatile memory (37) with a capacity of 64 Kb, which can store up to 10665 events in the format Day-Month-Year-Hour-Minute-Event Code, this memory (37) is connected to the microcontroller ( 81) by means of two tracks (38 and 39) with protocol 12 C with communication speed of 100 Bits / Sec; and in addition, it has a real time clock (40), with a battery backup (41), to record the exact date and time, and is used at the precise moment in which any event is generated, this clock (40) how much with a crystal (42) that emits pulses that oscillate to 32768 Hz and communicates with the microcontroller (81) as well as the memory by means of two wires (38) and (39) with I2C protocol at a speed of 100 Kbits / Seg; vi) a circuit F that contains a transceiver of protocol "CAN Bus" (47) that works up to a speed of 1 Mbits / Sec, in our application works at 33.3355 Kbits / Sec; has two filters of electromagnetic interference (43 and 44), two resistors (45 and 46) to close the loop of current, in this case it is required only of a two-wire multipoint protocol (86 and 85) and works with differential voltage; finally, the circuit has two connections (48 and 49) to join the microcontroller (81); vii) a circuit G containing a serial transmitter (50) protocol RS-223 to communicate with a personal computer through a serial connection (51), the communication is done at 9600 Bits / Sec, the transmission-reception format is 10 bits for each Byte, 1 start BIT, 8 data bits and a stoppage BIT; it communicates with the microcontroller (81) via a connection (92) and receives information from the microcontroller (81) via a connection (93); viii) a circuit H that is constituted of at least 8"leds" bicolores to indicate the status of the alarms, these alarms are: Status Fuel Pump (52) connected to the microprocessor (81) through the tracks (60) and (61), water pressure switch (53) connected to the microprocessor (81) by the tracks (62) and (63), Fuel level (54) connected to the microprocessor (81) by the tracks (64) and (65) ), Tank level (55) connected to the microprocessor (81) by the tracks (66) and (67), Automatic Selector (56) connected to the microprocessor (81) by the tracks (68) and (69), State of the Battery charger (57) connected to the microprocessor (81) by tracks (70) and (71), Test Status Periodic (58) connected to the microprocessor (81) by the tracks (72) and (73), Start Fault (59) connected to the microprocessor (81) by the tracks (74) and (75); ? x) a circuit I that is composed of a serial programming circuit (76) that basically serves to emulate and program the microcontroller (81), which in turn comprises a communication line (77), a programming voltage ( 78), as well as a 5V power supply (79) and a connection to the micro controller (81) via the track (80); and x) a circuit J for the operation of the complete application, which has the microcontroller (81) of RISC technology that works with an external oscillator (82) at 4 MHz and internally is multiplied by 4, giving a working speed of 16 MHz, this microcontroller (81) is responsible for controlling the B circuit integrated battery charger, to activate an auditory alarm (84), receive a pulse of a button (83) that serves to silence the auditory alarm, read and write in non-volatile memory (37), read and set date and time in the real-time clock (42), turn on and off the two-color "leds" (52, 53, 54, 55, 56, 57, 58 and 59) depending the state of the alarms, communicate with the personal computer in RS-232 serial form (51) and receive Bus Can information (48 and 49) that is sent by the Control of the Fire System (85 and 86); an audible alarm (84), which is activated when an event is generated in the equipment; a button (83) to silence the audible alarm; and a battery (82) to support electric current in the absence of this. Finally it should be noted that the microcontroller (81) must be provided with all the necessary inputs to receive the aforementioned connections of the other circuits;