User Manual Black Cat 030057 Loop Detector Issue 0.6 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
1 Contents 1 Contents ................................................................................................................. 2 2 Document History .................................................................................................. 2 2.1 Document Release ........................................................................................... 2 3 Description ............................................................................................................. 3 Physical .................................................................................................................. 3 4 4.1 Connectors and Pinouts ................................................................................... 4 Installation into a Black CAT Host ........................................................................ 5 5 6 Detection Loops / Antennas ................................................................................... 6 7 Agency Statements ................................................................................................. 8 8 Definitions ............................................................................................................ 10 2 Document History 2.1 Document Release Comments Issue Date 0.1 0.2 0.3 0.4 0.5 0.6
------------------------------------------------------------------------------------------------------------------------------------------------------------
22/04/2014 Draft 16/07/2014 Comments added section 4 and 8 17/07/2014 Various changes (Updated correct version) 28/7/2014 Removed commercially sensitive content 4/8/2014 3/9/2014 Corrections Loop detail added Copyright CA Traffic 2014 2 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
3 Description The 030057 is an eight channel inductive loop detector, designed to be integrated into CA Traffics Black CAT family of traffic monitoring units only. The function of the loop detector card is to detect road vehicles using inductive loops which are buried typically 75mm below the road surface. Under normal operation the loop detector is controlled by the Black CAT host. The user has the ability to indirectly alter loop detector parameters when using the Black CAT via the Collect Black user interface program Refer to 080004 CA001-501 Black CAT User manual for details. 225 x 125 x 26 mm (overall including front panel and handle 200g
-30 C to +80 C Supplied by the Black Cat (nominally 12VDC) 4 Physical Size Weight Temperature range Input voltage Operating current 10mA typ Sensor Inputs Outputs I/O Operating frequency 60 - 85kHz Detection sensitivity 0.05%dL/L Scan duty cycle ITU Class of Emission as defined in the ITU Radio Regulations Article 4 Appendix 6. Alarm Indicator Up to 8 inductive road loops (80 - 350uH) 8 x Sensor status LEDs and 1 x Alarm LED SPI bus 2ms transmitter on, 8ms transmitter off 1k0N0N This illuminates when the detector card is unable to communicate with the host CPU card. A F Indicators (sensor status leds) These indicators indicate the status of each loop On indicates that a loop presence is detected (something over the loop) Slow Flashing indicates Open Circuit loop fault has been detected Fast Flashing indicates Short Circuit loop fault has been detected.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 3 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
4.1 Connectors and Pinouts Two connectors are provided on the Loop Detector as follows:
Black Cat (Host CPU) Interface = 36way edge Pin assignments Pin No Signal Description A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 GND VBAT TP5 DETSEL_2 DETSEL_1 DETSEL_0 SSEL0 SCK0 MISO MOSI DET_SYNC SYS_32K DET_ENAB DETREQ IDENT_2 IDENT_1 IDENT_0 GND GND VBAT RUN RUN LEDS_ON GND GND GND GND GND GND GND TP7 TP6 IDENT_2 IDENT_1 IDENT_0 GND Power supply: common ground (0V). Power supply Input: +VOLTS Not used Used by CPU board to select card Used by CPU board to select card Used by CPU board to select card I/P, asserted by CPU board during the SPI transfer Clock input, from CPU board. Data output, to external CPU. Data input, from external CPU board Temporarily assert to reset the time-tag. 32768Hz clock from CPU (logic level) Temporarily assert to cold boot (reset) the PCB. o/p, assert to request attention Leave open circuit or connect to ground. Slot ID Leave open circuit or connect to ground. Slot ID Leave open circuit or connect to ground. Slot ID Power supply: common ground (0V). Power supply: common ground (0V). Power supply Input: +VOLTS Raised to logic 1 to power up the PCB. Raised to logic 1 to power up the PCB. Asserted to allow the on-board LEDs to operate. Power supply: common ground (0V). Power supply: common ground (0V). Power supply: common ground (0V). Power supply: common ground (0V). Power supply: common ground (0V). Power supply: common ground (0V). Power supply: common ground (0V). Not used Not used Leave open circuit or connect to ground. Slot ID Leave open circuit or connect to ground. Slot ID Leave open circuit or connect to ground. Slot ID Power supply: common ground (0V). All signals connected to the detector are listed below. All signals are CMOS logic level (0 to +3V3) unless otherwise specified. Logic 1 = 3V3: an asserted signal is at logic 1, a negated signal is at ground.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 4 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Loop Input Connector = Tyco 050372 Pin assignments (PL3) Pin No Signal Description 1 9 2 10 3 11 4 12 5 13 6 14 7 15 8 16 LOOP_H2 LOOP_H1 LOOP_G2 LOOP_G1 LOOP_F2 LOOP_F1 LOOP_E2 LOOP_E1 LOOP_D2 LOOP_D1 LOOP_C2 LOOP_C1 LOOP_B2 LOOP_B1 LOOP_A2 LOOP_A1 Loop input H Loop input H Loop input G Loop input G Loop input F Loop input F Loop input E Loop input E Loop input D Loop input D Loop input C Loop input C Loop input B Loop input B Loop input A Loop input A 5 Installation into a Black CAT Host Be sure to take appropriate precautions to avoid ESD when handling, and installing the 030057 Loop detector module into a Black CAT host. Use the appropriate assembly drawing to ascertain which peripheral slot the Loop detector module is to be installed. Ensure the slot guide rails are clean and clear of any foreign material. Insert the Loop detector module into the guides and slide in until its front panel is in contact with the Black CAT. Insert 2 off M3x8 screws through the Black CAT rear panel into the rear bracket of the Loop Detector module, do not tighten as this point. Insert 2 off M3x10 screws through the Loop detector modules front panel into the Black CAT top and bottom panels then tighten all four screws.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 5 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
6 Detection Loops / Antennas The 030057 Loop Detector is designed to monitor up to eight detection loops. A detection loop is generally 2m x 2m (6 x 6) square and comprises of either 3 or 4 turns of cable buried in a slot cut into the road surface then covered and back filled with epoxy resin and/or hot pour bitumen (sealant/grout). The cable is a single core multi-strand flexible cable. We recommend using a XHHN Cross-linked, polyethylene-insulated wire rated at 90 C in dry locations. Road Loop Location A traffic monitoring site should ideally be located on a long flat straight section of road which is clear from junctions or any other features which may cause vehicles to accelerate or decelerate. The road surface should be in good condition, free from cracks, potholes and bumps A road loop should be at least 1 metre clear from any manhole, grate or any other type of metal street furniture A minimum clearance of 50mm should be maintained between any reinforcement in the road and the road loop. Road loop Installation A road loop is installed by firstly marking out the location of the loop on the road surface. Typically 2m x 2m square. A slot typically 10mm wide and between 50-80mm deep is cut into the road surface. Cross cuts are then made at 45 degrees across each corner, this prevents the formation of tight 90 degree bends. A slot is then cut from the loop slot to the edge of the road/draw pit or cabinet to route the loop feeder. The slot is then cleaned and dried. Run the loop wire from the roadside cabinet/equipment housing along the feed slot to the loop slot, form 3 or 4 turns of wire in the loop slot then return to the cabinet equipment housing. It is advisable to check the loop inductance and resistance at this point. Check the loop wire is lying flat in the bottom of the slots then completely fill with sealant/grout
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 6 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Checking Check the loop inductance agrees with the theoretical value. Check the series resistance (across the loop feeder wires) is <10R Check the resistance to ground is >100 M ohms measured at 500V Check the loop inductance agrees with the value below:
3 turn loop (2m x 2m) = 85uH + (0.6 x length of feeder (m)) 4 turn loop (2m x 2m) = 150uH + (0.6 x length of feeder (m)) Allow a tolerance of +/-15 % in the measurement. Refer to the following for further information on detector loops, installation etc FHWA Traffic Detector handbook third edition volume II chapter 5 The 030057 Loop Detector is designed to operate with road loops that have been constructed and installed into the road surface as above, whose overall inductance is within the range 80uH to 350uH Termination Road loops are normally terminated in the roadside cabinet via a terminal/barrier strip, they are then connected to the Loop Detector module using a connecting cable as shown below:
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 7 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
7 Agency Statements FCC Statements Compliance statement (Part 15.19) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. Warning (Part 15.21) Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Industry Canada Statements Section 7.1.2 of RSS-GEN Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or less) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be chosen that the equivalent isotropic radiated power (e.i.r.p) is not more than that necessary for successful communication. Section 7.1.3 of RSS-GEN This Device complies with Industry Canada License-exempt RSS standard(s). Operation is subject to the following two conditions: 1) this device may not cause interference, and 2) this device must accept and interference, including interference that may cause undesired operation of the device. Industrie Canada declarations Section 7.1.2 du RSS-GEN Aux termes des rglements de lindustrie du Canada, cet metteut radio peut fonctionner laide dune antenne dun type et un maximum (ou moins) de gain approuv pour lemetteur par Industrie Canada. Pour rduire le risqu dinterfrence aux autres utilisateurs, le type dantenne et son gain doivent tre choisis afin que la puissance isotrop rayonne quivalente (e.i.r.p) ne dpasse pas ce qui est ncessaire pour une communication russie.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 8 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Section 7.1.3 du RSS-GEN Cet appareil ect conforme avec Industrie Canada norme exempt de licence RSS (s). Son fonctionnement est soumis aux deux conditions suivantes: 1) cette appareil peut ne pas causer linterfrence et 2) cet appareil doit accepter toute interference, y compris les interferences qui peuvent causer un mauvais fonctionnement de lappareil. Responsibilities to comply with FCC and Industry Canada Regulations The 030057 Loop detector module, has been granted Limited Modular Approval for integration into Black CAT host products by approved members of CA staff under the following conditions:
1. The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter. 2. Integration is only permitted in Black CAT host products which are suitably shielded. CA Traffic ltd is still responsible for testing their end-product for any additional compliance requirements required with this module installed. IMPORTANT NOTE: In the event that these conditions cannot be met (for certain configurations or co-located with another transmitter), then the FCC and Industry Canada authorizations are no longer considered valid and the FCC ID and IC Certification Number cannot be used on the final product. In these circumstances, CA Traffic ltd will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC and Industry Canada authorization. End Product Labelling The 030057 Loop Detector module is labelled with its own FCC ID and IC Certification Number. If the FCC ID and IC Certification Number are not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. In that case, the final end product must be labelled in a visible area with the following:
Contains Transmitter Module FCC ID: 2AB86-030057 Contains Transmitter IC: 11965A-030057 or Contains FCC ID: 2AB86-030057 Contains IC: 11965A-030057 The 030057 Loop detector Module must only use approved antenna(s) which have been certified with this module. CA Traffic ltd has to be aware not to provide information to the end user regarding how to change RF related parameters in the user manual of the end product.
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 9 Issue 0.6 User Manual 030057 Loop Detector 3/09/14
-----------------------------------------------------------------------------------------------------------------------------------------------------------
8 Definitions Black Cat CPU CFG CA Traffic Ltd, family of traffic monitoring equipment Central processing unit (Black Cat CPU Board) Configuration
------------------------------------------------------------------------------------------------------------------------------------------------------------
Copyright CA Traffic 2014 10