Abstract:
A security system which comprises temperature and movement sensors, and two timers. One of them for controlling a relay and the second timer. The relay, upon activation, triggers the theft alarm system. The second timer switches activate the power window motors to open the windows and to make a phone call. All this allows outside air to cool down the vehicle cabin, provides easy access/exit, alert nearby people for help, and also sends a remote alert to the person called. So, the present invention accomplishes its primary function of preserving life left in hot vehicles by taking measures to directly prevent life loss inside hot vehicles and alert nearby and remote people for assistance.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to the field of providing effective safety measures to prevent life threatening situations because of human or animal presence left inside hot vehicles. 
         [0003]    2. Description of the Related Art 
         [0004]    The available vehicle security systems help fighting delinquent activity, alert of damage caused to the property in case of accident. Others security systems close the windows before a roll over accident is detected is going to happen, and open them after it to facilitate victims getting out of the vehicle or easier assistance to them. There is a system that secures the doors after the vehicle starts moving to avoid children from opening the doors with the vehicle moving. 
         [0005]    Every year, news related to children or pets left inside hot cars strike us, with families suffering the consequences of neglect, or intentional behavior leading to human or animal loss. 
         [0006]    Today, to my knowledge, there is not a related art intended to offer a way to avoid death inside hot vehicles; which is somewhat disconcerting. 
         [0007]    Reading newspapers reflecting these cases moved me to think that there should be a way to help preventing more life loss because of the aforementioned cause. This is the goal I pursued in the present invention. 
       SUMMARY OF THE INVENTION 
       [0008]    The present invention provides a security system for extended use in the auto industry in general. Because of the cabin temperature and movement sensors provide continuous monitoring of life presence and its eventual deterioration in case of prolonged exposure inside a hot vehicle cabin, this security system takes active measures to ensure: 
         [0009]    Outside cooler air exchange with hot air trapped inside the vehicle cabin, by activating all windows opening mechanisms when high temperature and life presence is detected. 
         [0010]    People nearby is alerted by activating the vehicle theft alarm systems, thus providing immediate help and easy access to those in need. 
         [0011]    A phone call is made to alert of the endangered life left in a hot vehicle cabin, by using a cell phone connected to the security system. 
         [0012]    The temperature and movement sensors are conveniently placed inside the cabin to ensure the effective operation. Also, several movement sensors can be used, but one placed on the center of the interior part of the roof panel in the cabin is recommended as it monitors the front and rear seats on two row seats vehicles. In large vans, buses, RVs, etc; more than one movement sensor may be needed. The sensitivity and timing of said movement sensor is adjusted to perform accordingly, as well as the timers it controls. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0013]    In the present invention, features of the claimed subject matter will become apparent as the following detailed description proceeds, and upon reference to the drawings, where numerals and letters depict like parts, and in which: 
           [0014]      FIG. 1  is a circuit diagram showing the present embodiment when the security system is in monitoring mode. 
           [0015]      FIG. 2  is a copy of the  FIG. 1  circuit diagram showing the present embodiment when inside the vehicle cabin the temperature exceeds certain preset limit, life presence is detected, and the security system is in operation mode. 
           [0016]      FIG. 3  is a block diagram showing a vehicle theft alarm system in which has being added the relay switch  18 . 1  intended for activation of said theft alarm system. 
           [0017]      FIG. 4  is a schematic diagram of a cell phone with the internal call key contacts exposed to show its connection to one of the second timer switches  19 . 9 . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0018]    The present invention illustrates the monitoring mode of an electronic device  FIG. 1 , having a 12V DC vehicle battery  10 , a temperature sensor  12 , a movement sensor  14 , a timer  16  with a relay  18  and a second timer  19  connected to it. The master window switch  33  (located in the driver door panel) is shown with the driver switch, the right front, left rear and right rear window switches of said master window switch  33 ; which should be connected to the present embodiment as it is shown. The power window motor of the driver, front passenger (right front), left rear, and right rear windows  22 ,  25 ,  28 ,  31  respectively are also shown. They have the second timer switches  19 . 1 ,  19 . 3 ,  19 . 5 ,  19 . 7  connected to the open side of the respective window switches. In this  FIG. 1  it is shown the primary monitoring mode in which: 
         [0019]    The battery  10  positive terminal connects to a temperature sensor  12  through wire  11 ; to the open position of the master window switches through wires  23 ,  26 ,  29 ,  32 . The temperature sensor is an electronic device with a normally open switch (NO)  12 . 1 , which is connected to a movement sensor  14  positive terminal and its NO switch  14 . 1 . The wire  15  connects  14  to the timer  16  positive terminal and to one of its switches  16 . 1 . The relay  18  is connected to the timer  16  through the switches  16 . 1 / 16 . 2 . A second timer  19  is connected to the timer switch  16 . 1  and to ground through wire  20 . The temperature sensor  12 , movement sensor  14 , and timer  16  are connected to ground through wire  17 . 
         [0020]    The temperature sensor  12  and the movement sensor  14  are monitoring the vehicle cabin. The sensor  12  is preset to a certain temperature after which the physiological conditions of a life organism start deteriorating. The movement sensor  14 , Timer  16 , the relay  18  and second timer  19  connected to it, as well as the master window switch  33  and power window motors  22 ,  25 ,  28 ,  31  are not connected to the battery  10  positive terminal, because the temperature sensor  12  has not detected temperature over the preset limit and  14  has not detected life presence inside the cabin. 
         [0021]      FIG. 2  illustrates the system in operation mode, in which the temperature inside the vehicle cabin reaches the preset limit, activating the switch  12 . 1 . Battery DC power is supplied through wire  13  to the movement sensor  14  which activates  14 . 1  upon life presence is detected. The timer  16  is then connected to DC battery power trough wire  15 . After a preset time, the switches  16 . 1 / 16 . 2  activate to deliver DC power to the relay  18  (activating its switch  18 . 1 ) and the second timer  19 . The timer  19  which switches  19 . 1 ,  19 . 2 ,  19 . 3 ,  19 . 4 ,  19 . 5 ,  19 . 6 ,  19 . 7 ,  19 . 8  connected to the master window switch  33 , are activated for less than a minute to connect the respective window motors ( 22 ,  25 ,  28 ,  31 ) to DC positive power through wires  23 ,  26 ,  29 ,  32 . The driver switch, right front switch, left rear switch, and right rear switches have connected  19 . 1 ,  19 . 3 ,  19 . 5 ,  19 . 7  to the open position side of them. The switch  19 . 9  is connected to a cell phone call key  FIG. 4 , which is activated to close the cell phone call key contacts; thus a phone call is made to the preset (highlighted) number on the display. The person who receives the call is alerted. 
         [0022]    Switches  19 . 2 ,  19 . 4 ,  19 . 6 , and  19 . 8  close to connect one wire of the window motors  22 ,  25 ,  28 ,  31  to ground. The power window motor  22 ,  25 ,  28 ,  31  are connected to positive DC power through the wires  23 ,  26 ,  29 ,  32 , which are bridged by switches  19 . 1 ,  19 . 3 ,  19 . 5 ,  19 . 7 . The vehicle windows open, allowing the outside air exchange with the hot air in the vehicle cabin and thus cooling it. The relay  18   FIG. 3 , have its switch  18 . 1  connected to the OFF position of a trigger switch of the theft alarm system. When the switch  18 . 1  is activated, the theft alarm system is then also activated and starts blinking the vehicle lights and sounding the horn. People nearby is alerted. 
         [0023]    There are two parameters the security system monitors (temperature and movement), that are subject to change independently, once the windows are opened and the alert is sent to nearby people, and the one called: 
         [0024]    When temperature inside the cabin decreases due to the air exchange cooling effect, the temperature sensor  12 - FIG. 1  opens its switch  12 . 1  and so the bridge between wires  11  and  13 , so that battery power  10  to wire  13  is interrupted, the movement sensor  14 , timer  16 , relay  18  and second timer  19  are deactivated. 
         [0025]    When movement is no longer detected inside the vehicle cabin, the movement sensor  14 - FIG. 1  opens its switch  14 . 1  and wire  13  to  15  are disconnected, interrupting the DC voltage applied to the timer  16 , the relay  18  and the second timer  19 . The temperature, if still high, keeps wires  11 - 13  connected, but the circuit line formed by  13  to  15  and  16  is opened by  14 . 1 . 
         [0026]    The timer  16  (set to 2-3 minutes delay) makes sure that any detected movement by  14 , is prolonged and not for just a few seconds, like might be passing vehicles that move the pavement, someone that hits the vehicle while parking, etc. Continuous/uninterrupted movement for 2-3 minutes means life presence in the vehicle cabin. 
         [0027]    The timer  19  should be set with a delay time of less than a minute (time counting starts after the timer  16  activated its contacts  16 . 1 / 16 . 2  when the movement sensor  14  detects life inside the vehicle cabin and powers  16 ). When timer  16  closes the contacts  16 . 1 / 16 . 2 , the DC battery power  10  activates the relay  18  and the secondary timer  19 . This secondary timer  19  is set with a delay time enough for the door power window motors  22 ,  25 ,  28 ,  31  to fully open the windows when the contacts  19 . 1 ,  19 . 2 ,  19 . 3 ,  19 . 4 ,  19 . 5 ,  19 . 6 ,  19 . 7 , and  19 . 8  close (less than half a minute). The phone call is made by the cell phone  FIG. 4  just after the contacts  19 . 9  close. The relay  18 , upon activation by the contacts  16 . 1 / 16 . 2  of timer  16 , activates its switch  18 . 1  connected to a trigger switch, thus triggering the theft alarm system on  FIG. 3  to which it is connected. 
         [0028]    Once the phone call is made, the person who receives it, reads on the display of his/her phone, the number/message assigned to identify the cell phone inside the vehicle cabin (Could be . . . run to your car, left in hot car, life endangered, etc). As the person called hangs on, the cell phone in the vehicle keeps highlighting the previously selected phone number in the display (the one just called). A car charger keeps the phone on,  FIG. 3 . 
         [0029]    On the market there is a system called Onstar, which after a robbery or accident has occurred to a vehicle, a phone call is made to a service provider to which a monthly fee must be paid. In the described invention I foresee using a prepaid cell phone, which minutes of call are paid when used. As this cell phone placed inside the vehicle might never make a call, it is convenient to pay, let&#39;s say . . . five dollars once to have it ready; just to allow the emergency call takes place when necessary. On this cell phone the settings must prevent any incoming call by rejecting it. 
         [0030]    As can be seen, the present invention may have different arrangements of the various component depicted and their connection to the circuit, as well as components not shown, excluded or exchanged. All of that is possible without departing from the spirit and scope of the present invention. The components used, as well as the designed circuit; were purposely chosen to comply with the primary rule of simplicity and lowest possible cost. Thus, it can be broadly used by the auto industry in general, as well as in any other application where the present invention may be adapted just by adding, excluding, or exchanging some components, or slight variations to the circuitry. Also the components can be selected appropriately to function with a different voltage supply. 
         [0031]    The terms and expressions employed herein are used as terms of description and not of limitation, and there is no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications are possible within the scope of the claims. Accordingly, the claims are intended to cover all such equivalents.