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参数资料
| 型号： | COP800 |
| 英文描述： | COP800 Based Automated Security/Monitoring System(137.88 k) |
| 中文描述： | 基于自动安全/监测系统（137.88亩COP800） |
| 文件页数： | 3/8页 |
| 文件大小： | 137K |
| 代理商： | COP800 |
HARDWARE DESCRIPTION
This section describes the various blocks in the ASM Sys-
tem briefly and highlights the hardware considerations in the
design of the System
Receiver Unit
The Receiver Unit operates with the Sensors and Transmit-
ter Unit An eight-key dip switch makes it possible to select
256 different digital codes A detector LED indicates the
level of the radio frequency (RF) energy detected by the
receiver and enables the user to determine the best loca-
tions for the transmitter(s) and receiver assuring reliable
operation
Figure 2 shows the interface between the COP888CG and
the Receiver Unit on the bi-directional IO Port L capable of
functioning as Multi-Input WakeUp (MIWU) In this imple-
mentation the WR-200 series of receivers manufactured by
Visonic Ltd was used These receivers are designed to op-
erate with Visonic standard transmitters The receiver oper-
ates on 12 VDC When RF signal from the transmitter(s) is
detected the receiver activates a relay which in turn inter-
rupts the microcontroller The output of the relay is connect-
ed to the Port L of the COP888CG whose alternate function
includes the Multi-Input WakeUp feature The COP888CG
after a time delay of 10 seconds activates the Auto-Dialer
Unit The microcontroller turns on a LED to indicate an
alarm signal was detected and is being processed
Sensors and Transmitters
This unit has a built-in reed switch which can be used with a
magnet to activate the transmitter An eight-key dip switch
forms the code selector and each key can be set to either
ON or OFF position to create a unique code This code
should match with the code selected on the receiver unit
Model WR-100 Universal Wireless Transmitter manufac-
tured by Visonic Ltd was used in the implementation of the
SecurityMonitoring System
Keypad Unit
The Keypad Unit consists of4x4 matrix keyboard The
Figure
2
shows
the
keyboard
matrix
interface
to
COP888CG The keyboard is scanned periodically by ad-
dressing a column in the keyboard matrix The program sen-
ses the key closure in that column by testing the Port I lines
(I0 to I3) which are connected to the rows of the keyboard
matrix Thus each key is associated with the conjunction of
one Port D output line and one Port I input line only
The keypad unit is used to program the real time clock in
order to set the time and date The telephone number to be
dialed in case of a security breach can also be programmed
through the keypad as well as the terminal keyboard in the
Terminal Unit
Auto-Dialer Unit
The Auto-Dialer Unit dials the number programmed by the
user upon detection of RF signal by the Receiver from the
Sensors and Transmitter Unit The unit consists of two ICs
and some peripheral circuitry National Semiconductor’s
TP5700A is the Telephone Speech Circuit and TP5088 is
the DTMF generator These two chips are interfaced to the
COP888CG as in
Figure 2 The COP888CG outputs the digit
to be dialed to TP5088 and the output of the DTMF genera-
tor is inputted to the Speech Circuit The Speech Circuit
interfaces with the telephone lines
TP5088 is a low cost CMOS device that provides the tone-
dialing capability in microprocessor-controlled telephone
applications TP5700A is a linear bipolar device which in-
cludes the functions required to build the speech circuit of a
telephone It replaces the hybrid transformer compensation
circuit and sidetone network used traditional designs
Data Storage Unit
The Data Storage Unit stores the real time data of events
that the Receiver Unit detects and informs the Central Con-
trolling Unit The storage is non-volatile and can be archived
for later references The Terminal Unit can request the Cen-
tral Controlling Unit to display the events and the data
stored in the Storage Unit The telephone number to be
dialed by the Auto-Dialer Unit is also stored in this unit This
unit interfaces with the COP888CG using the MICROWIRE
PLUSTM serial communication protocol
In this implementation the COP888CG microcontroller inter-
faces with NM93C06A Serial EEPROM Memory
The
NM93C06A contains 256 bits of readwrite EEPROM orga-
nized as 16 registers of 16 bits each Written information
has a retention period of at least 10 years
Figure 2 shows
the interface between COP888CG and NMC9306
Any sequentially accessible memory device that is compati-
ble with the MICROWIREPLUSTM serial communication
protocol can be used as a Data Storage Unit The Central
Controlling Unit checks for the availability of memory and
informs the user of the same if memory is full Upon receipt
of memory full prompt the user can decide to overwrite or
replace the memory device
Display Terminal Unit
The Display Terminal Unit interfaces with the COP888CG
through the full-duplex
double buffered UART
The
COP888CG is interrupted by the terminal and the microcon-
troller decodes the ASCII character sent and services the
corresponding request The terminal keyboard can be used
to program the telephone number to be dialed by the Auto-
Dialer Unit The real time clock is displayed on the terminal
screen The user can request the Central Controlling Unit to
display the history of events monitored by the AMS System
The Central Controlling Unit retrieves the information from
the Date Storage Unit and displays it on the screen
The ASM System utilized a Visual 550 terminal The termi-
nal employs two independent display memories alphanu-
merics and graphics The alphanumeric functions of the
V550 is ANSI X364 compatible and the graphics functions
are fully compatible with Tectronix Plot 10
software
With slight modification of the Central Controlling Unit’s al-
gorithm it is possible to make the ASM System interface
with any other terminal unit
LED Display Unit
The LED Display Unit is used to display the time and date
information
Figure
2
shows
the
interface
between
COP888CG and the Display Terminal Unit The COP888CG
communicates with this unit serially using the MICROWIRE
PLUS protocol
The NSM4000A LED Display with Driver is used in the ASM
System The NSM4000A is a 4-digit 03 height LED display
with serial data-in parallel data-out LED driver designed to
operate with minimal interface to the data source The Cen-
3
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| COP820 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit CMOS ROM Based Microcontrollers with 1k or 2k Memory, Comparator and Brown Out Detector |
| COP820C | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit CMOS ROM Based Microcontrollers with 1k or 2k |
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