Method and apparatus for concealing sensors in urban and industrial environments

Abstract

The present invention provides a method of monitoring the position of a vehicle, vessel, rail car, barge, tanker truck that is loaded with bulk or hazardous material. A G.P.S unit is set to send a signal to a radio transmitter if the unit moves beyond a maximum permissible distance (for example, 50 feet or more). An oxygen sensor can be used to send a signal to a radio transmitter if oxygen levels fall below a selected minimum concentration. The radio transmitter can send the message to a tugboat crew, police department, fire department, company headquarters, civil defense office or other personnel if either of the unit has moved beyond the selected maximum travel distance or if oxygen levels fall below a minimum concentration. In addition to the radio transmission of oxygen concentration data and/or G.P.S position data, visible or audible alarms can be used such as strobe light, horn or the like. Also disclosed is a system for concealment of chemical and/or biological sensors in a building for urban or industrial environments.

Claims

1. A system for concealing sensors in an urban environment, that includes a building having an outer wall and an interior comprising: (a) a sensor, the sensor sensing chemical or biological agents; (b) a container, the container housing the sensor and resembling an electrical box; (c) a vent in fluid communication with the container, the vent including an air outlet portion mounted on said outer wall and resembling a dryer vent; (d) a fan operatively connected to the container, the fan drawing an airflow through the container, and wherein the air flow discharges through the vent; (e) a control panel, the control panel being operatively connected to the sensor and fan; and (f) wherein the sensor sends a warning signal to the control panel if chemical or biological agents are detected.

2. The system of claim 1, wherein the system is installed in a building with the first and second vents being located on the exterior of the building outer wall and the panel being located on the interior of the building.

3. The system of claim 1, wherein the system is installed in a building and the container is located on the outer wall of the building and the panel located on the interior of the building.

4. A system for concealing sensors in an urban environment that includes a building having an outer wall, comprising: (a) a sensor, the sensor sensing chemical or biological agents; (b) a first vent mounted on said outer wall, the first vent resembling a dryer vent; (c) a second vent mounted on said outer wall, the second vent resembling a dryer vent; (d) a fan fluidly connected to both the first and second vents, the fan drawing an airflow through the first vent, and the air flow discharging through the second vent; (e) a control panel, the control panel being operatively connected to the sensor and fan; and (f) wherein the sensor sends a warning signal to the control panel if chemical or biological agents are detected.

5. A system for concealing sensors in an urban environment that includes one or more walls comprising: (a) a sensor, the sensor sensing chemical or biological agents; (b) a first vent mounted on one of said walls; (c) a second vent mounted on said outer wall, the second vent resembling a dryer vent; and (d) a fan fluidly connected to both the first and second vents, the fan drawing an airflow through the first vent, and the air flow discharging through the second vent; (e) a control panel, the control panel being operatively connected to the sensor and fan; and (f) wherein the sensor sends a warning signal to the control panel if chemical or biological agents are detected.

6. A system for concealing sensors in an urban environment, that includes a building having an outer wall and an interior comprising: (a) a sensor, the sensor sensing chemical or biological agents; (b) a container, the container housing the sensor and resembling an electrical box; (c) a vent that resembles a dryer vent mounted to a said wall; (d) a conduit that connects the vent with container; and (e) a fan operatively connected to the container, the fan drawing an airflow through the container, and wherein the air flow discharges through the vent; (f) a control panel, the control panel being operatively connected to the sensor and fan; and (g) wherein the sensor sends a warning signal to the control panel if chemical or biological agents are detected.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) For a further understanding of the nature, objects, and advantages of the present invention, reference should be had to the following detailed description, read in conjunction with the following drawings, wherein like reference numerals denote like elements and wherein:

(2) FIG. 1 is a schematic diagram illustrating placement of vent pipes on tank cars near the outside perimeter of the switch yard.

(3) FIG. 2 is a sectional elevation view of the preferred embodiment of the apparatus of the present invention illustrating an oxygen sensor mated to a radio transmitter and concealed in a vent pipe that can be placed on a flat metallic surface or other metal container enclosing hazardous material.

(4) FIG. 3 is an exploded elevation view illustrating a G.P.S. position indicating device of the present invention.

(5) FIG. 4 is a schematic plan view illustrating placement of G.P.S. units on moored barges such as, for example, a raft of barges that are eight barges wide and one quarter mile long.

(6) FIG. 5 is a schematic diagram showing a concealment system for a building.

(7) FIG. 6 is a schematic diagram shown an alternative concealment system for a building.

DETAILED DESCRIPTION

(8) Detailed descriptions of one or more preferred embodiments are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in any appropriate system, structure or manner.

(9) The present invention provides an improved method and apparatus for monitoring the position of selected vehicles or vessels such as barges, rail cars, containers and the like. In FIG. 1, a rail yard 10 is shown having vent pipes placed on tank cars at positions 11, 12, 13, 14 wherein the switch yard, designated generally by the numeral 15 is, for example, a quarter of a mile wide and one mile long. Placement of vent pipes in rail switch yard 15 can provide an early warning system for switch yards 15 located near population centers. The vent pipes can be placed on tank cars near the outside perimeter of switch yard 15. Distance D1 can be 1 mile. Distance D2 can be ¼ mile.

(10) FIG. 2 shows a sectional view of a simulated vent pipe 16 according to the present invention. The vent pipe includes a base 17 that is preferably magnetic and can be shaped or molded to look like a pipe flange.

(11) Mounted to the base 17 is a simulated marine type vent pipe 18 that can be a three sixteenth inch wall thickness one piece molded PVC vent pipe. The vent pipe 18 and magnetic base 17 can interlock using a one quarter turn locking arrangement of the pipe 18 to the base 17. Base 17 can be molded to look like a pipe flange and vent pipe 18 can be constructed so that a one quarter turn locks vent pipe 18 to base 17.

(12) The simulated vent pipe 18 provides an interior 19 that is hollow so that battery pack 20 and radio transmitter 21 can be contained therein. The radio transmitter 21 is interfaced with oxygen sensor 22 so that if the oxygen sensor 22 senses oxygen concentrations below a selected level (such as the ten percent figure indicated in FIG. 2), an instrumentation wire 23 interfaces the oxygen sensor with radio transmitter 21 to send a signal via antenna 24 that will be received by an appropriate law enforcement officer, company headquarters, control center or the like. Oxygen sensor 22 connected to radio transmitter 21 can be concealed in vent pipe 18 and placed on a flat surface or any metal container enclosing hazardous material(s).

(13) In FIG. 3, the internal components of another sensor device are shown. In FIG. 3, only the magnetic base 17 is shown, its cover having been removed for purposes of clarity. Within interior 19 of pipe 18 there is provided a rechargeable battery pack 25 for powering G.P.S. unit 26, strobe light 27, and radio transmitter 28. The cover 29 provided in FIG. 3 can be a clear lexan, one piece molded cover that protects the base 17 battery pack 25 and components 26, 27, 28. Antenna 32 with base 31 can be used to send a signal using radio transmitter 28 that alerts appropriate rescue personnel or other law enforcement agency, fire department, police department or the like that a selected vessel (or vehicle) to which base 17 and components 25-32 are attached has shifted position more than a preselected minimum distance. A seal 33 can be included between cover 29 and antenna 32.

(14) FIG. 4 is a schematic plan view illustrating placement of G.P.S. units 40,41,42,43 on moored barges such as, for example, a raft of barges that are eight barges wide and one quarter mile long. In FIG. 4 is a river 35, such as the Mississippi River, with levees or river banks 36,37 on either side of river 35 and having current 38.

(15) FIG. 5 is a schematic diagram showing a concealment system for chemical and/or biological sensors 100 for a building 50. This system may be particularly applicable to governmental buildings which are located in an urban environment. Such a concealment system can deter vandalism of the sensors 100 by making them less noticeable. In FIG. 5 sensors 100 are concealed in a container 80 resembling an electrical breaker box and located on the exterior wall 55 of building 50. The container can include a plurality of openings 85 from which air can be drawn by a fan, such as inline fan 120. Inline fan 120 can be connected to container 80 through pipe 110. Pipe 110 can resemble ordinary electrical conduit pipe. Accordingly, where container 80 resembles an electrical breaker box and pipe 110 resembles electrical conduit then persons would believe it was merely an standard electrical breaker box which is not out of the ordinary and not providing an incentive to investigate further or vandalize. Air drawn through pipe 110 can be discharged through pipe 130 and vent 140. Air flow can be in the direction of arrows 121, 122. Vent 140 can resemble an ordinary dryer vent so as not to draw attention to the unit. Panel 170 can be located inside of building 170 and control sensors 100. Panel 170 can also supply power to fan 120 through power source 150. If chemical and/or biological agents are detected then a signal can be sent to panel 170 and an alarm issued. Panel 170 can be monitored by security personnel already in place in many government buildings, or signals from panel 170 can be sent to a remote monitoring station, such as through phone lines, computer lines such as the internet, or via radio signals.

(16) FIG. 6 is a schematic diagram showing an alternative concealment system for a building 60. In this alternative system a double vent system 210, 200 is all that is seen by the public. Vents 210, 200 can each resemble common ordinary dryer vents. Vents 210, 200 can be connected through pipe 220. Sensors 240 can be included in pipe 220. Fan 230 can be used to cause air to flow from vent 210 to vent 200. Air flow can be in the direction of arrows 231, 232. Panel 170 can be used to monitor and control sensors 240 through lines 260 and also supply power to fan 230 through power supply line 250. The operation of this system is similar to the system should in FIG. 5.

LIST OF REFERENCE NUMERALS

(17) The following is a list of reference numerals used in this application. Reference Number Description 10 rail yard 11 tank car 12 tank car 13 tank car 14 tank car 15 switch yard 16 simulated vent pipe 17 magnetic base 18 simulated vent pipe 19 pipe interior 20 battery pack 21 radio transmitter 22 oxygen sensor 23 instrumentation wire 24 antenna 25 battery pack 26 g.p.s. unit 27 strobe light 28 radio transmitter 29 cover 31 antenna base 32 antenna 33 seal 35 river 36 levee 37 levee 38 current 40 G.P.S. unit 41 G.P.S. unit 42 G.P.S. unit 43 G.P.S. unit 50 building 55 exterior wall 56 interior wall 60 building 65 exterior wall 70 ground level 80 electrical breaker box 90 holes 100 sensors 110 electrical conduit pipe 120 fan 121 arrow 122 arrow 130 pipe 140 vent 150 power supply 160 wires 170 panel 180 interior 190 wall 200 vent 210 vent 220 pipe 230 fan 231 arrow 232 arrow 240 sensors 250 power supply 260 wires 270 panel 280 interior

(18) It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention set forth in the appended claims. The foregoing embodiments are presented by way of example only; the scope of the present invention is to be limited only by the following claims.